Canadian Wildlife Species at Risk 2023
Committee on the status of Endangered Wildlife in Canada (COSEWIC)
October 2023
Document information
For information, please contact:
COSEWIC Secretariat
Canadian Wildlife Service
Environment and Climate Change Canada
351 St. Joseph Blvd 14th floor
Gatineau QC K1A 0H3
E-mail: COSEWIC/COSEPAC@ec.gc.ca
Web site: Committee on the Status of Endangered Wildlife in Canada (COSEWIC)
Address:
14th Floor
Place Vincent Massey
351 St. Joseph Blvd.
Gatineau QC J8Y 3Z5
This publication is updated annually and includes minor revisions to COSEWIC information that occur throughout the year.
This publication can be cited as follows: COSEWIC. 2023. Canadian Wildlife Species at Risk. Committee on the Status of Endangered Wildlife in Canada. Web site: Document search [accessed 12 October 2023].
COSEWIC status Reports are available from the Species at Risk (SAR) Public Registry
About COSEWIC
COSEWIC Mandate
The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) assesses the national status of wild species, subspecies, varieties, or other designatable units that are considered to be at risk in Canada. Designations are made on native wildlife species including the following taxonomic groups: mammals, birds, reptiles, amphibians, fishes, arthropods, molluscs, vascular plants, mosses, and lichens.
COSEWIC Membership
COSEWIC comprises members from each provincial and territorial government wildlife agency, four federal agencies (Canadian Wildlife Service, Parks Canada Agency, Department of Fisheries and Oceans, and the Canadian Museum of Nature), three non-government science members, two early career members and the co-chairs of the species specialist and the Aboriginal Traditional Knowledge subcommittees.
Definitions
- Wildlife Species
- A species, subspecies, variety, or geographically or genetically distinct population of animal, plant or other organism, other than a bacterium or virus, that is wild by nature and is either native to Canada or has extended its range into Canada without human intervention and has been present in Canada for at least 50 years.
- Extinct (X)
- A wildlife species that no longer exists.
- Extirpated (XT)
- A wildlife species no longer existing in the wild in Canada, but occurring elsewhere.
- Endangered (E)
- A wildlife species facing imminent extirpation or extinction.
- Threatened (T)
- A wildlife species likely to become endangered if limiting factors are not reversed.
- Special Concern (SC)
(Note: Formerly described as “Vulnerable” from 1990 to 1999, or “Rare” prior to 1990.) - A wildlife species that may become a threatened or an endangered species because of a combination of biological characteristics and identified threats.
- Not at Risk (NAR)
(Note: Formerly described as “Not In Any Category”, or “No Designation Required.”) - A wildlife species that has been evaluated and found to be not at risk of extinction given the current circumstances.
- Data Deficient (DD)
(Note: Formerly described as “Indeterminate” from 1994 to 1999 or “ISIBD” [insufficient scientific information on which to base a designation] prior to 1994. Definition of the [DD] category revised in 2006.) - A category that applies when the available information is insufficient (a) to resolve a species’ eligibility for assessment or (b) to permit an assessment of the species’ risk of extinction.
Summary tables
Wildlife species designated in the "risk" and the Extinct categories, as well as the Not at Risk and Data Deficient categories
| Taxon | Extinct | Extirpated | Endangered | Threatened | Special concern | Totals |
|---|---|---|---|---|---|---|
| Mammals | 5 | 1 | 35 | 15 | 31 | 87 |
| Birds | 3 | 2 | 34 | 26 | 29 | 94 |
| Reptiles | 0 | 5 | 15 | 13 | 17 | 50 |
| Amphibians | 0 | 1 | 13 | 5 | 9 | 28 |
| Fishes | 13 | 2 | 86 | 60 | 64 | 225 |
| Arthropods | 0 | 4 | 40 | 13 | 23 | 80 |
| Molluscs | 1 | 2 | 23 | 7 | 13 | 46 |
| Vascular Plants | 0 | 3 | 111 | 45 | 55 | 214 |
| Mosses | 1 | 1 | 11 | 4 | 5 | 22 |
| Lichens | 0 | 0 | 5 | 9 | 9 | 23 |
| Totals | 23 | 21 | 373 | 197 | 255 | 869 |
| Taxon | Extinct | Extirpated | Endangered | Threatened | Special concern | Totals |
|---|---|---|---|---|---|---|
| Mammals | 5 | 1 | 32 | 15 | 31 | 84 |
| Birds | 3 | 2 | 34 | 26 | 29 | 94 |
| Reptiles | 0 | 5 | 15 | 13 | 17 | 50 |
| Amphibians | 0 | 1 | 13 | 5 | 9 | 28 |
| Fishes | 13 | 2 | 86 | 60 | 64 | 225 |
| Arthropods | 0 | 4 | 41 | 13 | 22 | 80 |
| Molluscs | 1 | 2 | 23 | 7 | 13 | 46 |
| Vascular Plants | 0 | 3 | 109 | 46 | 56 | 214 |
| Mosses | 1 | 1 | 11 | 4 | 5 | 22 |
| Lichens | 0 | 0 | 5 | 9 | 9 | 23 |
| Totals | 23 | 21 | 369 | 198 | 255 | 866 |
| Taxon | Not at risk |
|---|---|
| Mammals | 45 |
| Birds | 38 |
| Reptiles | 5 |
| Amphibians | 15 |
| Fishes | 66 |
| Arthropods | 2 |
| Molluscs | 3 |
| Vascular Plants | 23 |
| Mosses | 3 |
| Lichens | 2 |
| Totals | 202 |
| Taxon | Not at risk |
|---|---|
| Mammals | 45 |
| Birds | 38 |
| Reptiles | 5 |
| Amphibians | 15 |
| Fishes | 66 |
| Arthropods | 2 |
| Molluscs | 3 |
| Vascular Plants | 23 |
| Mosses | 3 |
| Lichens | 2 |
| Totals | 202 |
| Taxon | Data deficient |
|---|---|
| Mammals | 7 |
| Birds | 2 |
| Reptiles | 0 |
| Amphibians | 1 |
| Fishes | 33 |
| Arthropods | 3 |
| Molluscs | 5 |
| Vascular Plants | 6 |
| Mosses | 1 |
| Lichens | 3 |
| Totals | 61 |
| Taxon | Data deficient |
|---|---|
| Mammals | 7 |
| Birds | 2 |
| Reptiles | 0 |
| Amphibians | 1 |
| Fishes | 33 |
| Arthropods | 5 |
| Molluscs | 5 |
| Vascular Plants | 5 |
| Mosses | 1 |
| Lichens | 3 |
| Totals | 62 |
Results from the May 2023 and December 2022 COSEWIC meetings (Tables 4-5)
| Taxon | Extinct | Extirpated | Endangered | Threatened | Special concern | Not at risk | Data deficient | Totals |
|---|---|---|---|---|---|---|---|---|
| Mammals | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 3 |
| Birds | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 4 |
| Reptiles | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 3 |
| Amphibians | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 |
| Fishes | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Arthropods | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| Molluscs | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Vascular Plants | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 3 |
| Mosses | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Lichens | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Totals | 0 | 4 | 8 | 0 | 3 | 0 | 1 | 16 |
| Taxon | Extinct | Extirpated | Endangered | Threatened | Special concern | Not at risk | Data deficient | Totals |
|---|---|---|---|---|---|---|---|---|
| Mammals | 0 | 0 | 0 | 1 | 2 | 0 | 0 | 3 |
| Birds | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 2 |
| Reptiles | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 2 |
| Amphibians | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Fishes | 0 | 0 | 1 | 2 | 1 | 0 | 0 | 4 |
| Arthropods | 0 | 2 | 4 | 1 | 0 | 0 | 0 | 7 |
| Molluscs | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 |
| Vascular Plants | 0 | 1 | 1 | 1 | 2 | 0 | 0 | 5 |
| Mosses | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| Lichens | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
| Totals | 0 | 3 | 9 | 7 | 8 | 0 | 0 | 27 |
| Type of change | Extinct | Extirpated | Endangered | Threatened | Special concern | Not at risk | Data deficient | Totals |
|---|---|---|---|---|---|---|---|---|
| New (no symbol) | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 4 |
| In a higher risk category ↑ | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 |
| In a lower risk category ↓ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Changed ☼ | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
| No change ↔ | 0 | 4 | 3 | 0 | 2 | 0 | 0 | 9 |
| Reassigned ↻ | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 |
| No longer at risk √ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Totals | 0 | 4 | 8 | 0 | 3 | 0 | 1 | 16 |
| Type of change | Extinct | Extirpated | Endangered | Threatened | Special concern | Not at risk | Data deficient | Totals |
|---|---|---|---|---|---|---|---|---|
| New (no symbol) | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
| In a higher risk category ↑ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| In a lower risk category ↓ | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 3 |
| Changed ☼ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| No change ↔ | 0 | 3 | 8 | 3 | 4 | 0 | 0 | 18 |
| Reassigned ↻ | 0 | 0 | 1 | 3 | 1 | 0 | 0 | 5 |
| No longer at risk √ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Totals | 0 | 3 | 9 | 7 | 8 | 0 | 0 | 27 |
| Symbols | Explanation |
|---|---|
| ↑ | Wildlife species placed in a higher risk category after review of classification on the date shown. |
| ↓ | Wildlife species placed in a lower risk category after review of classification on the date shown. |
| ↔ | Wildlife species stays in the same category after review of classification on the date shown. |
| ☼ | Wildlife species moved to the Data Deficient category from a risk category, or to a risk category from the Data Deficient category on the date shown. |
| ↻ | Wildlife species that has been assigned to a different designatable unit than previously on the date shown. |
| √ | Wildlife species moved to the Not at Risk category from a risk category on the date shown. |
| no symbol | New wildlife species examined on the date shown. |
COSEWIC assessment results
The tables that follow (tables 6-9) are organized by status category and then by taxonomic group. For each wildlife species, the information provided includes the Common name, Scientific name, Population name, and Range of occurrence in Canada (by province, territory or ocean). The most recent date of COSEWIC assessment is shown. The symbols on the left provide information on the outcome of reviews of classification (see explanation of symbols on page three).
The first COSEWIC "Endangered Wildlife Species List" was issued in 1978. In 1990, it was decided that all wildlife species considered by COSEWIC should be included in this document even if the wildlife species were in the Not at Risk or Data Deficient categories. Therefore, this document is divided into four sections. The first section (Table 6) includes wildlife species assessed and designated as Extinct. The second section (Table 7) includes wildlife species assessed and designated as Extirpated, Endangered, Threatened or Special Concern. The third section (Table 8) includes wildlife species assessed and found to be in the Not at Risk category. The fourth section (Table 9) includes wildlife species considered by COSEWIC and placed in the Data Deficient category because of insufficient scientific information to resolve a wildlife species' eligibility for assessment or to assess risk of extinction.
Information used for assessment
COSEWIC uses the best available information when assessing the status of a wildlife species, usually summarized in a COSEWIC status report. Assessments involve consideration of several factors, including the wildlife species’ eligibility for assessment and the status suggested by application of the quantitative COSEWIC criteria (adapted from those used by the International Union for the Conservation of Nature, IUCN). Further information on status reports and the assessment process may be found on the COSEWIC website: Committee on the Status of Endangered Wildlife in Canada.
Range of occurrence
The geographical distribution of each wildlife species is defined in terms of the provinces, territories and oceans in which the wildlife species occurs. This information should not be treated as a complete listing of the jurisdictions that may be legally responsible for the conservation and management of a wildlife species. Several guidelines are followed when determining the Range of occurrence of a wildlife species: for birds, it includes the Canadian breeding and wintering distribution; for marine species, it includes the oceans in which the species occurs (Arctic, Pacific or Atlantic); for freshwater species, it includes the province or territory in which the waterbody occurs; and, for species that occur in brackish waters, move between marine and freshwater environments, or move between oceans and land (e.g., Atlantic Walrus), Range of occurrence includes a list of both the oceans and provinces in which the wildlife species occurs.
| Abbreviation | Province |
|---|---|
| AB | Alberta |
| BC | British Columbia |
| MB | Manitoba |
| NB | New Brunswick |
| NL | Newfoundland and Labrador |
| NS | Nova Scotia |
| NT | Northwest Territories |
| NU | Nunavut |
| ON | Ontario |
| PE | Prince Edward Island |
| QC | Québec |
| SK | Saskatchewan |
| YT | Yukon Territory |
About the Legal Listing of Wildlife Species Assessed by COSEWIC
COSEWIC meets twice a year to assess the status of wildlife species. Since 2004, COSEWIC submits an annual report to the federal Minister of the Environment and Climate Change, which includes all assessment results for wildlife species that COSEWIC has assessed since its last report.
Wildlife species assessed by COSEWIC as Extirpated, Endangered, Threatened or Special Concern will be considered for legal protection and recovery (or management) under the SARA. Based in part on COSEWIC's status assessment, the government may decide to add a wildlife species to SARA's List of Wildlife Species at Risk, to not add a wildlife species to the List of Wildlife Species at Risk, or to refer the matter back to COSEWIC for further information or consideration.
More information on the SARA listing process may be found on the SARA Public Registry.
| Taxon | Assessment details | Common name | Scientific name | Population name | Historical range of occurrence | Extinction date | Assessment date |
|---|---|---|---|---|---|---|---|
| Mammals | ↻ | Bear, Grizzly | Ursus arctos | Ungava population | QC NL | Not applicable | May 2012 |
| Mammals | ↔ | Caribou dawsoni subspecies | Rangifer tarandus dawsoni | Not applicable | BC | 1920s | May 2000 |
| Mammals | ↔ | Mink, Sea | Mustela macrodon | Not applicable | NB NS Atlantic Ocean | 1894 | May 2000 |
| Mammals | ↻ | Walrus, Atlantic | Odobenus rosmarus rosmarus | Nova Scotia - Newfoundland - Gulf of St Lawrence population | QC NB PE NS NL Atlantic Ocean | Not applicable | April 2017 |
| Mammals | ↑ | Whale, Grey | Eschrichtius robustus | Atlantic population | Atlantic Ocean | before end of 1700s | May 2022 |
| Birds | ↔ | Auk, Great | Pinguinus impennis | Not applicable | QC NB NS NL | 1844 | May 2000 |
| Birds | ↔ | Duck, Labrador | Camptorhynchus labradorius | Not applicable | QC NB NS NL | 1875 | May 2000 |
| Birds | ↔ | Pigeon, Passenger | Ectopistes migratorius | Not applicable | SK MB ON QC NB PE NS | 1914 | May 2000 |
| Fishes | ↑ | Bass, Striped | Morone saxatilis | St. Lawrence River population | QC | Not applicable | November 2019 |
| Fishes | ↔ | Cisco, Deepwater | Coregonus johannae | Not applicable | ON | 1952 | May 2000 |
| Fishes | ↔ | Dace, Banff Longnose | Rhinichthys cataractae smithi | Not applicable | AB | 1986 | May 2000 |
| Fishes | ↻ | Kiyi, Lake Ontario | Coregonus kiyi orientalis | Not applicable | ON | 1964 | May 2005 |
| Fishes | ↑ | Salmon, Atlantic | Salmo salar | Lake Ontario population | ON Atlantic Ocean | Last reported in 1898 | November 2010 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Adams-ES population (original) | BC Pacific Ocean | Not applicable | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | North Barriere-ES population (original) | BC Pacific Ocean | Not applicable | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Seton-S population (original) | BC Pacific Ocean | Not applicable | December 2021 |
| Fishes | ↔ | Stickleback, Hadley Lake Benthic Threespine | Gasterosteus aculeatus | Not applicable | BC | 1999 | May 2000 |
| Fishes | ↔ | Stickleback, Hadley Lake Limnetic Threespine | Gasterosteus aculeatus | Not applicable | BC | 1999 | May 2000 |
| Fishes | ↔ | Walleye, Blue | Sander vitreus glaucus | Not applicable | ON | 1965 | May 2000 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Como Lake large-bodied population | ON | Not applicable | April 2018 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Como Lake small-bodied population | ON | Not applicable | April 2018 |
| Molluscs | ↔ | Limpet, Eelgrass | Lottia alveus alveus | Not applicable | Atlantic Ocean | 1929 | May 2000 |
| Mosses | (no symbol) | Moss, Macoun's Shining | Neomacounia nitida | Not applicable | ON | not observed since 1864 | November 2002 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Historical range of occurrence | Extirpation date | Assessment date |
|---|---|---|---|---|---|---|---|
| Mammals | ↔ | Ferret, Black-footed | Mustela nigripes | Not applicable | AB SK | 1974 | December 2021 |
| Birds | ↔ | Prairie-Chicken, Greater | Tympanuchus cupido pinnatus | Not applicable | AB SK MB ON | last reported in 1987 in Saskatchewan | December 2021 |
| Birds | ↔ | Sage-Grouse phaios subspecies, Greater | Centrocercus urophasianus phaios | Not applicable | BC | not observed since 1960s | December 2021 |
| Reptiles | ↔ | Gophersnake, Pacific | Pituophis catenifer catenifer | Not applicable | BC | Not applicable | May 2023 |
| Reptiles | ↔ | Lizard, Pygmy Short-horned | Phrynosoma douglasii | Not applicable | BC | last reported in 1957 | November 2018 |
| Reptiles | ↔ | Rattlesnake, Timber | Crotalus horridus | Not applicable | ON | 1941/1942 | May 2023 |
| Reptiles | ☼ | Turtle, Eastern Box | Terrapene carolina | Not applicable | ON | Not applicable | November 2014 |
| Reptiles | ↔ | Turtle, Northwestern Pond | Actinemys marmorata | Not applicable | BC | Not applicable | May 2023 |
| Amphibians | ↔ | Salamander, Eastern Tiger | Ambystoma tigrinum | Carolinian population | ON | Not applicable | May 2023 |
| Fishes | ↔ | Chub, Gravel | Erimystax x-punctatus | Not applicable | ON | last reported in 1958, Thames River drainage | May 2019 |
| Fishes | ↔ | Paddlefish | Polyodon spathula | Not applicable | ON | 1913 | May 2019 |
| Arthropods | ↔ | Blue, Karner | Plebejus samuelis | Not applicable | ON | 1991 | May 2019 |
| Arthropods | ↔ | Burying Beetle, American | Nicrophorus americanus | Not applicable | ON QC | Not applicable | December 2022 |
| Arthropods | ↔ | Elfin, Frosted | Callophrys irus | Not applicable | ON | 1988 | May 2019 |
| Arthropods | ↔ | Marble, Island | Euchloe ausonides insulanus | Not applicable | BC | before 1908 | December 2022 |
| Molluscs | ↔ | Puget Oregonian | Cryptomastix devia | Not applicable | BC | not observed since 1905 | May 2013 |
| Molluscs | ↔ | Wedgemussel, Dwarf | Alasmidonta heterodon | Not applicable | NB | 1968 | December 2021 |
| Vascular Plants | ↻ | Lupine, Oregon | Lupinus oreganus | Not applicable | BC | Last recorded in 1929 | November 2008 |
| Vascular Plants | ↔ | Spring Blue-eyed Mary | Collinsia verna | Not applicable | ON | not observed since 1954 | December 2022 |
| Vascular Plants | ↔ | Tick-trefoil, Illinois | Desmodium illinoense | Not applicable | ON | not observed since 1888 | May 2000 |
| Mosses | ↔ | Moss, Incurved Grizzled | Ptychomitrium incurvum | Not applicable | ON | 1825 | December 2021 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Range of occurrence | Assessment date |
|---|---|---|---|---|---|---|
| Mammals | ↔ | Badger jacksoni subspecies, American | Taxidea taxus jacksoni | Not applicable | ON | November 2012 |
| Mammals | ↻ | Badger jeffersonii subspecies, American | Taxidea taxus jeffersonii | Eastern population | BC | November 2012 |
| Mammals | ↻ | Badger jeffersonii subspecies, American | Taxidea taxus jeffersonii | Western population | BC | November 2012 |
| Mammals | (no symbol) | Bat, Eastern Red | Lasiurus borealis | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | May 2023 |
| Mammals | (no symbol) | Bat, Hoary | Lasiurus cinereus | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | May 2023 |
| Mammals | (no symbol) | Bat, Silver-haired | Lasionycteris noctivagans | Not applicable | YT NT BC AB SK MB ON QC NB NS NL | May 2023 |
| Mammals | ↔ | Bat, Tri-colored | Perimyotis subflavus | Not applicable | ON QC NB NS | November 2013 |
| Mammals | (no symbol) | Caribou | Rangifer tarandus | Eastern Migratory population | MB ON QC NL | April 2017 |
| Mammals | (no symbol) | Caribou | Rangifer tarandus | Torngat Mountains population | NU QC NL | November 2016 |
| Mammals | ↻ | Caribou | Rangifer tarandus | Southern Mountain population | BC | May 2014 |
| Mammals | ↻ | Caribou | Rangifer tarandus | Central Mountain population | BC AB | May 2014 |
| Mammals | ↑ | Caribou | Rangifer tarandus | Dolphin and Union population | NT NU | November 2017 |
| Mammals | ↔ | Caribou | Rangifer tarandus | Atlantic-Gaspésie population | QC | November 2014 |
| Mammals | ↔ | Kangaroo Rat, Ord's | Dipodomys ordii | Not applicable | AB SK | April 2017 |
| Mammals | ↔ | Marmot, Vancouver Island | Marmota vancouverensis | Not applicable | BC | May 2019 |
| Mammals | ↔ | Mole, Townsend's | Scapanus townsendii | Not applicable | BC | November 2014 |
| Mammals | ↔ | Mouse dychei subspecies, Western Harvest | Reithrodontomys megalotis dychei | Not applicable | AB | November 2019 |
| Mammals | ↑ | Mouse megalotis subspecies, Western Harvest | Reithrodontomys megalotis megalotis | Not applicable | BC | November 2019 |
| Mammals | ↔ | Myotis, Little Brown | Myotis lucifugus | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | November 2013 |
| Mammals | ↔ | Myotis, Northern | Myotis septentrionalis | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | November 2013 |
| Mammals | ↔ | Seal Lacs des Loups Marins subspecies, Harbour | Phoca vitulina mellonae | Not applicable | QC | April 2018 |
| Mammals | ↔ | Shrew, Pacific Water | Sorex bendirii | Not applicable | BC | April 2016 |
| Mammals | ↔ | Whale, Beluga | Delphinapterus leucas | Ungava Bay population | QC Arctic Ocean Atlantic Ocean | November 2020 |
| Mammals | ↑ | Whale, Beluga | Delphinapterus leucas | Cumberland Sound population | NU Arctic Ocean | November 2020 |
| Mammals | ↑ | Whale, Beluga | Delphinapterus leucas | St. Lawrence Estuary population | QC Atlantic Ocean | November 2014 |
| Mammals | ↔ | Whale, Blue | Balaenoptera musculus | Pacific population | Pacific Ocean | May 2012 |
| Mammals | ↔ | Whale, Blue | Balaenoptera musculus | Atlantic population | Atlantic Ocean | May 2012 |
| Mammals | (no symbol) | Whale, Grey | Eschrichtius robustus | Western Pacific population | BC Pacific Ocean | November 2017 |
| Mammals | ↻ | Whale, Grey | Eschrichtius robustus | Pacific Coast Feeding Group population | BC Pacific Ocean | November 2017 |
| Mammals | ↔ | Whale, Killer | Orcinus orca | Northeast Pacific southern resident population | Pacific Ocean | November 2008 |
| Mammals | ↔ | Whale, North Atlantic Right | Eubalaena glacialis | Not applicable | Atlantic Ocean | November 2013 |
| Mammals | ↔ | Whale, North Pacific Right | Eubalaena japonica | Not applicable | Pacific Ocean | May 2015 |
| Mammals | ↔ | Whale, Northern Bottlenose | Hyperoodon ampullatus | Scotian Shelf population | Atlantic Ocean | May 2011 |
| Mammals | ↔ | Whale, Sei | Balaenoptera borealis | Pacific population | Pacific Ocean | May 2013 |
| Mammals | ☼ | Whale, Sei | Balaenoptera borealis | Atlantic population | Atlantic Ocean | May 2019 |
| Birds | ↔ | Bobwhite, Northern | Colinus virginianus | Not applicable | ON | May 2023 |
| Birds | ↔ | Chat auricollis subspecies, Yellow-breasted | Icteria virens auricollis | Southern Mountain population | BC | November 2011 |
| Birds | ↑ | Chat virens subspecies, Yellow-breasted | Icteria virens virens | Not applicable | ON | November 2011 |
| Birds | ↔ | Crane, Whooping | Grus americana | Not applicable | NT AB SK MB | April 2010 |
| Birds | ↔ | Curlew, Eskimo | Numenius borealis | Not applicable | YT NT NU AB SK MB ON QC NB PE NS NL | November 2009 |
| Birds | ↔ | Flycatcher, Acadian | Empidonax virescens | Not applicable | ON | April 2010 |
| Birds | (no symbol) | Grebe, Horned | Podiceps auritus | Magdalen Islands population | QC NB NS Atlantic Ocean | April 2009 |
| Birds | ↑ | Gull, Ivory | Pagophila eburnea | Not applicable | NT NU NL | April 2006 |
| Birds | ↑ | Gull, Ross's | Rhodostethia rosea | Not applicable | NU MB NL Arctic Ocean Atlantic Ocean | May 2021 |
| Birds | ↔ | Knot rufa subspecies, Red | Calidris canutus rufa | Tierra del Fuego / Patagonia wintering population | NT NU AB SK MB ON QC NB PE NS NL | November 2020 |
| Birds | ↻ | Knot rufa subspecies, Red | Calidris canutus rufa | Southeastern USA / Gulf of Mexico / Caribbean wintering population | NT NU AB SK MB ON QC NB PE NS NL | November 2020 |
| Birds | ↔ | Lark, Streaked Horned | Eremophila alpestris strigata | Not applicable | BC | April 2018 |
| Birds | ↑ | Longspur, Chestnut-collared | Calcarius ornatus | Not applicable | AB SK MB | November 2019 |
| Birds | ↔ | Owl caurina subspecies, Spotted | Strix occidentalis caurina | Not applicable | BC | April 2008 |
| Birds | ↔ | Owl, Barn | Tyto alba | Eastern population | ON | November 2010 |
| Birds | ↔ | Owl, Burrowing | Athene cunicularia | Not applicable | BC AB SK MB | April 2017 |
| Birds | ↔ | Plover circumcinctus subspecies, Piping | Charadrius melodus circumcinctus | Not applicable | AB SK MB ON | November 2013 |
| Birds | ↔ | Plover melodus subspecies, Piping | Charadrius melodus melodus | Not applicable | QC NB PE NS NL | November 2013 |
| Birds | ↔ | Plover, Mountain | Charadrius montanus | Not applicable | AB SK | December 2021 |
| Birds | ↔ | Rail, King | Rallus elegans | Not applicable | ON | May 2011 |
| Birds | ↔ | Sage-Grouse urophasianus subspecies, Greater | Centrocercus urophasianus urophasianus | Not applicable | AB SK | December 2021 |
| Birds | ↔ | Sapsucker, Williamson's | Sphyrapicus thyroideus | Not applicable | BC | November 2017 |
| Birds | ↑ | Shearwater, Pink-footed | Ardenna creatopus | Not applicable | BC Pacific Ocean | November 2016 |
| Birds | ↻ | Shrike Eastern subspecies, Loggerhead | Lanius ludovicianus ssp. | Not applicable | ON QC | May 2014 |
| Birds | ↔ | Sparrow, Coastal Vesper | Pooecetes gramineus affinis | Not applicable | BC | April 2018 |
| Birds | ↔ | Sparrow, Henslow's | Ammodramus henslowii | Not applicable | ON QC | May 2011 |
| Birds | (no symbol) | Swift, Black | Cypseloides niger | Not applicable | BC AB | May 2015 |
| Birds | ↔ | Tern, Roseate | Sterna dougallii | Not applicable | QC NB NS Atlantic Ocean | May 2023 |
| Birds | ↔ | Thrasher, Sage | Oreoscoptes montanus | Not applicable | BC AB SK | December 2021 |
| Birds | ↑ | Warbler, Cerulean | Setophaga cerulea | Not applicable | ON QC | November 2010 |
| Birds | ↔ | Warbler, Kirtland's | Setophaga kirtlandii | Not applicable | ON | April 2008 |
| Birds | ↔ | Warbler, Prothonotary | Protonotaria citrea | Not applicable | ON | November 2016 |
| Birds | ↑ | Woodpecker, Red-headed | Melanerpes erythrocephalus | Not applicable | SK MB ON QC | April 2018 |
| Birds | ↔ | Woodpecker, White-headed | Dryobates albolarvatus | Not applicable | BC | May 2023 |
| Reptiles | ↑ | Gartersnake, Butler's | Thamnophis butleri | Not applicable | ON | November 2010 |
| Reptiles | ↻ | Massasauga | Sistrurus catenatus | Carolinian population | ON | November 2012 |
| Reptiles | ↔ | Nightsnake, Desert | Hypsiglena chlorophaea | Not applicable | BC | May 2011 |
| Reptiles | ↑ | Queensnake | Regina septemvittata | Not applicable | ON | April 2010 |
| Reptiles | ↔ | Racer, Blue | Coluber constrictor foxii | Not applicable | ON | May 2012 |
| Reptiles | ↔ | Ratsnake, Gray | Pantherophis spiloides | Carolinian population | ON | April 2018 |
| Reptiles | ↔ | Sea Turtle, Leatherback | Dermochelys coriacea | Pacific population | BC Pacific Ocean | December 2022 |
| Reptiles | ↔ | Sea Turtle, Leatherback | Dermochelys coriacea | Atlantic population | QC NB PE NS NL Atlantic Ocean | December 2022 |
| Reptiles | (no symbol) | Sea Turtle, Loggerhead | Caretta caretta | Not applicable | Atlantic Ocean | April 2010 |
| Reptiles | ↔ | Skink, Common Five-lined | Plestiodon fasciatus | Carolinian population | ON | May 2021 |
| Reptiles | ↻ | Snake, Sharp-tailed | Contia tenuis | Coast Mountains population | BC | December 2021 |
| Reptiles | ↑ | Softshell, Spiny | Apalone spinifera | Not applicable | ON QC | April 2016 |
| Reptiles | ↔ | Turtle, Blanding's | Emydoidea blandingii | Nova Scotia population | NS | November 2016 |
| Reptiles | ↑ | Turtle, Blanding's | Emydoidea blandingii | Great Lakes / St. Lawrence population | ON QC | November 2016 |
| Reptiles | ↔ | Turtle, Spotted | Clemmys guttata | Not applicable | ON QC | November 2014 |
| Amphibians | (no symbol) | Ambystoma, Unisexual | Ambystoma laterale - texanum | Small-mouthed Salamander dependent population | ON | April 2016 |
| Amphibians | (no symbol) | Ambystoma, Unisexual | Ambystoma laterale - (2) jeffersonianum | Jefferson Salamander dependent population | ON | April 2016 |
| Amphibians | ↔ | Frog, Blanchard's Cricket | Acris blanchardi | Not applicable | ON | May 2011 |
| Amphibians | ↔ | Frog, Northern Leopard | Lithobates pipiens | Rocky Mountain population | BC | December 2021 |
| Amphibians | ↔ | Frog, Oregon Spotted | Rana pretiosa | Not applicable | BC | May 2011 |
| Amphibians | ↑ | Salamander, Allegheny Mountain Dusky | Desmognathus ochrophaeus | Appalachian population | QC | April 2018 |
| Amphibians | ↔ | Salamander, Allegheny Mountain Dusky | Desmognathus ochrophaeus | Carolinian population | ON | April 2018 |
| Amphibians | ↻ | Salamander, Eastern Tiger | Ambystoma tigrinum | Prairie population | MB | November 2013 |
| Amphibians | ↑ | Salamander, Jefferson | Ambystoma jeffersonianum | Not applicable | ON | November 2010 |
| Amphibians | ↻ | Salamander, Northern Dusky | Desmognathus fuscus | Carolinian population | ON | May 2012 |
| Amphibians | ↔ | Salamander, Small-mouthed | Ambystoma texanum | Not applicable | ON | May 2014 |
| Amphibians | ↻ | Salamander, Western Tiger | Ambystoma mavortium | Southern Mountain population | BC | November 2012 |
| Amphibians | ↑ | Toad, Fowler's | Anaxyrus fowleri | Not applicable | ON | April 2010 |
| Fishes | ↑ | Bass, Striped | Morone saxatilis | Bay of Fundy population | NB NS Atlantic Ocean | November 2012 |
| Fishes | (no symbol) | Bluefin Tuna, Atlantic | Thunnus thynnus | Not applicable | Atlantic Ocean | May 2011 |
| Fishes | ↑ | Bocaccio | Sebastes paucispinis | Not applicable | Pacific Ocean | November 2013 |
| Fishes | ↻ | Chub, Silver | Macrhybopsis storeriana | Great Lakes - Upper St. Lawrence populations | ON | May 2012 |
| Fishes | ↔ | Chubsucker, Lake | Erimyzon sucetta | Not applicable | ON | May 2021 |
| Fishes | ↔ | Cisco, Shortnose | Coregonus reighardi | Not applicable | ON | April 2017 |
| Fishes | ↑ | Cisco, Spring | Coregonus sp. | Not applicable | QC | April 2009 |
| Fishes | ↻ | Cod, Atlantic | Gadus morhua | Southern population | Atlantic Ocean | April 2010 |
| Fishes | ↻ | Cod, Atlantic | Gadus morhua | Laurentian South population | Atlantic Ocean | April 2010 |
| Fishes | ↑ | Cod, Atlantic | Gadus morhua | Laurentian North population | Atlantic Ocean | April 2010 |
| Fishes | ↔ | Cod, Atlantic | Gadus morhua | Newfoundland and Labrador population | Atlantic Ocean | April 2010 |
| Fishes | ↑ | Cusk | Brosme brosme | Not applicable | Atlantic Ocean | November 2012 |
| Fishes | ↔ | Dace, Nooksack | Rhinichthys cataractae | Not applicable | BC | November 2018 |
| Fishes | ↔ | Dace, Redside | Clinostomus elongatus | Not applicable | ON | November 2017 |
| Fishes | ↔ | Dace, Speckled | Rhinichthys osculus | Not applicable | BC | November 2016 |
| Fishes | ↻ | Darter, Channel | Percina copelandi | Lake Ontario populations | ON | November 2016 |
| Fishes | ↻ | Darter, Channel | Percina copelandi | Lake Erie populations | ON | November 2016 |
| Fishes | ↻ | Darter, River | Percina shumardi | Great Lakes - Upper St. Lawrence populations | ON | April 2016 |
| Fishes | (no symbol) | Eulachon | Thaleichthys pacificus | Fraser River population | BC Pacific Ocean | May 2011 |
| Fishes | (no symbol) | Eulachon | Thaleichthys pacificus | Central Pacific Coast population | BC Pacific Ocean | May 2011 |
| Fishes | ↑ | Gar, Spotted | Lepisosteus oculatus | Not applicable | ON | November 2015 |
| Fishes | (no symbol) | Grenadier, Roundnose | Coryphaenoides rupestris | Not applicable | Arctic Ocean Atlantic Ocean | November 2008 |
| Fishes | (no symbol) | HakeWhite, | Urophycis tenuis | Southern Gulf of St. Lawrence population | Atlantic Ocean | November 2013 |
| Fishes | ☼ | Lamprey, Northern Brook | Ichthyomyzon fossor | Saskatchewan - Nelson River populations | MB | November 2020 |
| Fishes | ↔ | Lamprey, Western Brook | Lampetra richardsoni | Morrison Creek population | BC | April 2010 |
| Fishes | ↔ | Madtom, Northern | Noturus stigmosus | Not applicable | ON | May 2012 |
| Fishes | ↑ | Mako, Shortfin | Isurus oxyrinchus | Atlantic population | QC NB PE NS NL Atlantic Ocean | May 2019 |
| Fishes | ↔ | Porbeagle | Lamna nasus | Not applicable | Atlantic Ocean | May 2014 |
| Fishes | (no symbol) | Redfish, Deepwater | Sebastes mentella | Gulf of St. Lawrence - Laurentian Channel population | Atlantic Ocean | April 2010 |
| Fishes | ↔ | Redhorse, Copper | Moxostoma hubbsi | Not applicable | QC | May 2014 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Outer Bay of Fundy population | NB Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Anticosti Island population | QC Atlantic Ocean | November 2010 |
| Fishes | ↔ | Salmon, Atlantic | Salmo salar | Inner Bay of Fundy population | NB NS Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Eastern Cape Breton population | NS Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Nova Scotia Southern Upland population | NS Atlantic Ocean | November 2010 |
| Fishes | ↑ | Salmon, Chinook | Oncorhynchus tshawytscha | Okanagan population | BC Pacific Ocean | April 2017 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | North Thompson, Stream, Spring population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Upper Fraser, Stream, Spring population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Middle Fraser, Stream, Fall population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | North Thompson, Stream, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | East Vancouver Island, Ocean, Summer population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | South Thompson, Stream, Summer 1.3 population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Fraser, Stream, Summer (Upper Pitt) population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | South Thompson, Stream, Summer 1.2 population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | East Vancouver Island, Stream, Spring population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Middle Fraser, Stream, Spring population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Thompson, Stream, Spring population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Fraser, Ocean, Summer population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Taseko-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Takla-Trembleur-Stuart-S population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Takla-Trembleur-EStu population | BC Pacific Ocean | November 2017 |
| Fishes | ↔ | Salmon, Sockeye | Oncorhynchus nerka | Cultus-L population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Seton-L population | BC Pacific Ocean | November 2017 |
| Fishes | ↔ | Salmon, Sockeye | Oncorhynchus nerka | Sakinaw population | BC Pacific Ocean | April 2016 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Quesnel-S population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Bowron-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Momich-ES population (original) | BC Pacific Ocean | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Fraser-ES population (original) | BC Pacific Ocean | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Harrison (U/S)-L population | BC Pacific Ocean | November 2017 |
| Fishes | ↑ | Sculpin, Coastrange | Cottus aleuticus | Cultus Lake population | BC | November 2019 |
| Fishes | ↔ | Shark, Basking | Cetorhinus maximus | Pacific population | BC Pacific Ocean | April 2018 |
| Fishes | ↔ | Shark, White | Carcharodon carcharias | Atlantic population | QC NB PE NS NL Atlantic Ocean | May 2021 |
| Fishes | ↑ | Shiner, Carmine | Notropis percobromus | Not applicable | MB | April 2018 |
| Fishes | (no symbol) | Skate, Smooth | Malacoraja senta | Funk Island Deep population | NL Atlantic Ocean | May 2012 |
| Fishes | ↻ | Skate, Winter | Leucoraja ocellata | Eastern Scotian Shelf - Newfoundland population | Atlantic Ocean | May 2015 |
| Fishes | ↻ | Skate, Winter | Leucoraja ocellata | Gulf of St. Lawrence population | Atlantic Ocean | May 2015 |
| Fishes | ↑ | Smelt, Rainbow | Osmerus mordax | Lake Utopia large-bodied population | NB | November 2018 |
| Fishes | ↑ | Smelt, Rainbow | Osmerus mordax | Lake Utopia small-bodied population | NB | November 2018 |
| Fishes | ↔ | Stickleback, Enos Lake Benthic Threespine | Gasterosteus aculeatus | Not applicable | BC | May 2012 |
| Fishes | ↔ | Stickleback, Enos Lake Limnetic Threespine | Gasterosteus aculeatus | Not applicable | BC | May 2012 |
| Fishes | (no symbol) | Stickleback, Misty Lake Lentic Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2006 |
| Fishes | (no symbol) | Stickleback, Misty Lake Lotic Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2006 |
| Fishes | ↔ | Stickleback, Paxton Lake Benthic Threespine | Gasterosteus aculeatus | Not applicable | BC | April 2010 |
| Fishes | ↔ | Stickleback, Paxton Lake Limnetic Threespine | Gasterosteus aculeatus | Not applicable | BC | April 2010 |
| Fishes | ↔ | Stickleback, Vananda Creek Benthic Threespine | Gasterosteus aculeatus | Not applicable | BC | April 2010 |
| Fishes | ↔ | Stickleback, Vananda Creek Limnetic Threespine | Gasterosteus aculeatus | Not applicable | BC | April 2010 |
| Fishes | ↔ | Sturgeon, Lake | Acipenser fulvescens | Western Hudson Bay populations | SK MB | April 2017 |
| Fishes | ↻ | Sturgeon, Lake | Acipenser fulvescens | Saskatchewan - Nelson River populations | AB SK MB ON | April 2017 |
| Fishes | ↻ | Sturgeon, White | Acipenser transmontanus | Upper Fraser River population | BC | November 2012 |
| Fishes | ↻ | Sturgeon, White | Acipenser transmontanus | Upper Kootenay River population | BC | November 2012 |
| Fishes | ↻ | Sturgeon, White | Acipenser transmontanus | Upper Columbia River population | BC | November 2012 |
| Fishes | (no symbol) | Trout, Rainbow | Oncorhynchus mykiss | Athabasca River populations | AB | May 2014 |
| Fishes | ↔ | Trout, Steelhead | Oncorhynchus mykiss | Thompson River population | BC Pacific Ocean | November 2020 |
| Fishes | ↔ | Trout, Steelhead | Oncorhynchus mykiss | Chilcotin River population | BC Pacific Ocean | November 2020 |
| Fishes | ↑ | Warmouth | Lepomis gulosus | Not applicable | ON | May 2015 |
| Fishes | ↔ | Whitefish, Atlantic | Coregonus huntsmani | Not applicable | NS | December 2022 |
| Arthropods | ↔ | Blue, Island | Icaricia saepiolus insulanus | Not applicable | BC | December 2022 |
| Arthropods | (no symbol) | Borer, Hoptree | Prays atomocella | Not applicable | ON | November 2015 |
| Arthropods | (no symbol) | Buckmoth, Bogbean | Hemileuca sp. | Not applicable | ON | November 2009 |
| Arthropods | (no symbol) | Bumble Bee, Gypsy Cuckoo | Bombus bohemicus | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | May 2014 |
| Arthropods | ↔ | Bumble Bee, Rusty-patched | Bombus affinis | Not applicable | ON QC NB | December 2022 |
| Arthropods | ↔ | Checkerspot, Taylor's | Euphydryas editha taylori | Not applicable | BC | May 2011 |
| Arthropods | (no symbol) | Clubtail, Laura's | Stylurus laurae | Not applicable | ON | April 2010 |
| Arthropods | (no symbol) | Clubtail, Olive | Stylurus olivaceus | Not applicable | BC | May 2011 |
| Arthropods | ↔ | Clubtail, Rapids | Phanogomphus quadricolor | Not applicable | ON | November 2018 |
| Arthropods | (no symbol) | Crawling Water Beetle, Hungerford's | Brychius hungerfordi | Not applicable | ON | May 2011 |
| Arthropods | (no symbol) | Cuckoo Bee, Macropis | Epeoloides pilosulus | Not applicable | NS | May 2011 |
| Arthropods | ↔ | Diving Beetle, Bert's Predaceous | Sanfilippodytes bertae | Not applicable | AB | December 2022 |
| Arthropods | ↔ | Duskywing, Eastern Persius | Erynnis persius persius | Not applicable | ON | April 2016 |
| Arthropods | (no symbol) | Duskywing, Mottled | Erynnis martialis | Boreal population | MB | November 2012 |
| Arthropods | (no symbol) | Duskywing, Mottled | Erynnis martialis | Great Lakes Plains population | ON QC | November 2012 |
| Arthropods | (no symbol) | Efferia, Okanagan | Efferia okanagana | Not applicable | BC | November 2011 |
| Arthropods | (no symbol) | Emerald, Hine's | Somatochlora hineana | Not applicable | ON | May 2011 |
| Arthropods | ↔ | Flower Moth, White | Schinia bimatris | Not applicable | MB | November 2014 |
| Arthropods | ↔ | Gold-edged Gem | Schinia avemensis | Not applicable | AB SK MB | November 2016 |
| Arthropods | ↑ | Hairstreak, Behr's | Satyrium behrii | Not applicable | BC | May 2012 |
| Arthropods | ↻ | Hairstreak, Half-moon | Satyrium semiluna | Waterton Lakes population | AB | December 2022 |
| Arthropods | (no symbol) | Lady Beetle, Nine-spotted | Coccinella novemnotata | Not applicable | BC AB SK MB ON QC | April 2016 |
| Arthropods | ↔ | Metalmark, Mormon | Apodemia mormo | Southern Mountain population | BC | May 2014 |
| Arthropods | ↑ | Monarch | Danaus plexippus | Not applicable | BC AB SK MB ON QC NB PE NS | November 2016 |
| Arthropods | ↔ | Moth, Edwards' Beach | Anarta edwardsii | Not applicable | BC | May 2021 |
| Arthropods | ↔ | Moth, Five-spotted Bogus Yucca | Prodoxus quinquepunctellus | Not applicable | AB | May 2013 |
| Arthropods | ↔ | Moth, Non-pollinating Yucca | Tegeticula corruptrix | Not applicable | AB | May 2013 |
| Arthropods | (no symbol) | Moth, Reversed Haploa | Haploa reversa | Not applicable | ON | November 2019 |
| Arthropods | ↔ | Moth, Sand-verbena | Copablepharon fuscum | Not applicable | BC | November 2013 |
| Arthropods | ↔ | Moth, Yucca | Tegeticula yuccasella | Not applicable | AB | May 2013 |
| Arthropods | ↔ | Ringlet, Maritime | Coenonympha nipisiquit | Not applicable | QC NB | April 2009 |
| Arthropods | (no symbol) | Sheep Moth, Nuttall's | Hemileuca nuttalli | Not applicable | BC | November 2015 |
| Arthropods | (no symbol) | Shieldback, Vancouver Island | Steiroxys strepens | Not applicable | BC | May 2022 |
| Arthropods | ↑ | Skipper, Dakota | Hesperia dacotae | Not applicable | SK MB | May 2014 |
| Arthropods | (no symbol) | Skipper, Oregon Branded | Hesperia colorado oregonia | Not applicable | BC | November 2013 |
| Arthropods | ↔ | Skipper, Ottoe | Hesperia ottoe | Not applicable | MB | May 2015 |
| Arthropods | ↑ | Skipperling, Poweshiek | Oarisma poweshiek | Not applicable | MB | November 2014 |
| Arthropods | (no symbol) | Sun Moth, False-foxglove | Pyrrhia aurantiago | Not applicable | ON | April 2018 |
| Arthropods | (no symbol) | Tiger Beetle, Northern Barrens | Cicindela patruela | Not applicable | ON QC | November 2009 |
| Arthropods | (no symbol) | Tiger Beetle, Wallis' Dark Saltflat | Cicindela parowana wallisi | Not applicable | BC | November 2009 |
| Molluscs | ↑ | Abalone, Northern | Haliotis kamtschatkana | Not applicable | BC Pacific Ocean | April 2009 |
| Molluscs | ↔ | Bean, Rayed | Villosa fabalis | Not applicable | ON | April 2010 |
| Molluscs | (no symbol) | Fawnsfoot | Truncilla donaciformis | Not applicable | ON | April 2008 |
| Molluscs | (no symbol) | Forestsnail, Broad-banded | Allogona profunda | Not applicable | ON | November 2014 |
| Molluscs | ↔ | Forestsnail, Oregon | Allogona townsendiana | Not applicable | BC | May 2013 |
| Molluscs | (no symbol) | Globe, Toothed | Mesodon zaletus | Not applicable | ON | November 2019 |
| Molluscs | (no symbol) | Globelet, Proud | Patera pennsylvanica | Not applicable | ON | May 2015 |
| Molluscs | (no symbol) | Hickorynut | Obovaria olivaria | Not applicable | ON QC | May 2011 |
| Molluscs | ↔ | Hickorynut, Round | Obovaria subrotunda | Not applicable | ON | May 2013 |
| Molluscs | ↔ | Kidneyshell | Ptychobranchus fasciolaris | Not applicable | ON | May 2013 |
| Molluscs | (no symbol) | Lanx, Shortface | Fisherola nuttallii | Not applicable | BC | April 2016 |
| Molluscs | (no symbol) | Lilliput | Toxolasma parvum | Not applicable | ON | May 2013 |
| Molluscs | (no symbol) | Mountainsnail, Black Hills | Oreohelix cooperi | Not applicable | AB SK | May 2021 |
| Molluscs | ↑ | Mussel, Rocky Mountain Ridged | Gonidea angulata | Not applicable | BC | November 2010 |
| Molluscs | ↔ | Mussel, Salamander | Simpsonaias ambigua | Not applicable | ON | May 2011 |
| Molluscs | ↔ | Physa, Hotwater | Physella wrighti | Not applicable | BC | April 2008 |
| Molluscs | ↔ | Pigtoe, Round | Pleurobema sintoxia | Not applicable | ON | May 2014 |
| Molluscs | ↔ | Riffleshell, Northern | Epioblasma rangiana | Not applicable | ON | April 2010 |
| Molluscs | (no symbol) | Shagreen | Inflectarius inflectus | Not applicable | ON | November 2019 |
| Molluscs | ↔ | Snail, Banff Springs | Physella johnsoni | Not applicable | AB | April 2018 |
| Molluscs | ↔ | Snuffbox | Epioblasma triquetra | Not applicable | ON | November 2011 |
| Molluscs | (no symbol) | Striped Whitelip | Webbhelix multilineata | Not applicable | ON | April 2018 |
| Molluscs | (no symbol) | Tigersnail, Eastern Banded | Anguispira kochi kochi | Not applicable | ON | April 2017 |
| Vascular Plants | ↔ | Agalinis, Gattinger's | Agalinis gattingeri | Not applicable | MB ON | May 2001 |
| Vascular Plants | (no symbol) | Agalinis, Rough | Agalinis aspera | Not applicable | MB | April 2006 |
| Vascular Plants | ↔ | Agalinis, Skinner's | Agalinis skinneriana | Not applicable | ON | November 2010 |
| Vascular Plants | ↔ | Ammannia, Scarlet | Ammannia robusta | Not applicable | BC ON | May 2001 |
| Vascular Plants | (no symbol) | Ash, Pumpkin | Fraxinus profunda | Not applicable | ON | May 2022 |
| Vascular Plants | ↑ | Aster, Gulf of St. Lawrence | Symphyotrichum laurentianum | Not applicable | QC NB PE | May 2023 |
| Vascular Plants | (no symbol) | Aster, Short-rayed Alkali | Symphyotrichum frondosum | Not applicable | BC | April 2006 |
| Vascular Plants | ↔ | Avens, Eastern Mountain | Geum peckii | Not applicable | NS | April 2010 |
| Vascular Plants | ↔ | Balsamroot, Deltoid | Balsamorhiza deltoidea | Not applicable | BC | April 2009 |
| Vascular Plants | (no symbol) | Beakrush, Tall | Rhynchospora macrostachya | Not applicable | NS | November 2014 |
| Vascular Plants | (no symbol) | Birch, Cherry | Betula lenta | Not applicable | ON | April 2006 |
| Vascular Plants | ↔ | Bluehearts | Buchnera americana | Not applicable | ON | November 2011 |
| Vascular Plants | ↑ | Braya, Fernald's | Braya fernaldii | Not applicable | NL | November 2012 |
| Vascular Plants | (no symbol) | Braya, Hairy | Braya pilosa | Not applicable | NT | May 2013 |
| Vascular Plants | ↔ | Braya, Long's | Braya longii | Not applicable | NL | May 2011 |
| Vascular Plants | ↔ | Bugbane, Tall | Actaea elata | Not applicable | BC | April 2018 |
| Vascular Plants | ↑ | Bulrush, Bashful | Trichophorum planifolium | Not applicable | ON | May 2000 |
| Vascular Plants | ↔ | Bush-clover, Slender | Lespedeza virginica | Not applicable | ON | May 2013 |
| Vascular Plants | (no symbol) | Buttercup, California | Ranunculus californicus | Not applicable | BC | November 2008 |
| Vascular Plants | ↔ | Buttercup, Water-plantain | Ranunculus alismifolius | Not applicable | BC | April 2009 |
| Vascular Plants | ↔ | Butternut | Juglans cinerea | Not applicable | ON QC NB | April 2017 |
| Vascular Plants | ↔ | Cactus, Eastern Prickly Pear | Opuntia humifusa | Not applicable | ON | April 2010 |
| Vascular Plants | (no symbol) | Campion, Spalding's | Silene spaldingii | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Catchfly, Coastal Scouler's | Silene scouleri grandis | Not applicable | BC | May 2003 |
| Vascular Plants | (no symbol) | Centaury, Muhlenberg's | Centaurium muehlenbergii | Not applicable | BC | April 2008 |
| Vascular Plants | ↑ | Chestnut, American | Castanea dentata | Not applicable | ON | November 2004 |
| Vascular Plants | ↑ | Colicroot | Aletris farinosa | Not applicable | ON | November 2015 |
| Vascular Plants | (no symbol) | Collomia, Slender | Collomia tenella | Not applicable | BC | November 2003 |
| Vascular Plants | ↑ | Columbo, American | Frasera caroliniensis | Not applicable | ON | April 2006 |
| Vascular Plants | ↔ | Coreopsis, Pink | Coreopsis rosea | Not applicable | NS | November 2012 |
| Vascular Plants | (no symbol) | Dogwood, Eastern Flowering | Cornus florida | Not applicable | ON | April 2007 |
| Vascular Plants | (no symbol) | Evening-primrose, Contorted-pod | Camissonia contorta | Not applicable | BC | April 2006 |
| Vascular Plants | (no symbol) | Fern, California Sword | Polystichum californicum | Not applicable | BC | May 2023 |
| Vascular Plants | ↔ | Fern, Southern Maidenhair | Adiantum capillus-veneris | Not applicable | BC | May 2011 |
| Vascular Plants | (no symbol) | Foxglove, Downy Yellow False | Aureolaria virginica | Not applicable | ON | April 2018 |
| Vascular Plants | ↑ | Gentian, Plymouth | Sabatia kennedyana | Not applicable | NS | November 2012 |
| Vascular Plants | ↔ | Gentian, White Prairie | Gentiana alba | Not applicable | ON | November 2010 |
| Vascular Plants | ↔ | Ginseng, American | Panax quinquefolius | Not applicable | ON QC | May 2000 |
| Vascular Plants | ↔ | Goat's-rue, Virginia | Tephrosia virginiana | Not applicable | ON | November 2009 |
| Vascular Plants | (no symbol) | Goldenrod, Gillman's | Solidago gillmanii | Not applicable | ON | November 2019 |
| Vascular Plants | ↻ | Goldenrod, Showy | Solidago speciosa | Great Lakes Plains population | ON | November 2010 |
| Vascular Plants | (no symbol) | Goldfields, Rayless | Lasthenia glaberrima | Not applicable | BC | April 2008 |
| Vascular Plants | (no symbol) | Grass, Forked Three-awned | Aristida basiramea | Not applicable | ON QC | November 2002 |
| Vascular Plants | (no symbol) | Hesperochiron, Dwarf | Hesperochiron pumilus | Not applicable | BC | May 2019 |
| Vascular Plants | (no symbol) | Ironweed, Fascicled | Vernonia fasciculata | Not applicable | MB | November 2014 |
| Vascular Plants | (no symbol) | Ladies’–tresses, Ute | Spiranthes diluvialis | Not applicable | BC | November 2018 |
| Vascular Plants | (no symbol) | Lewisia, Tweedy's | Lewisiopsis tweedyi | Not applicable | BC | November 2013 |
| Vascular Plants | ↑ | Lipocarpha, Small-flowered | Lipocarpha micrantha | Not applicable | BC ON | November 2002 |
| Vascular Plants | ↔ | Lotus, Seaside Birds-foot | Lotus formosissimus | Not applicable | BC | November 2010 |
| Vascular Plants | ↔ | Lousewort, Furbish's | Pedicularis furbishiae | Not applicable | NB | May 2011 |
| Vascular Plants | (no symbol) | Lupine, Dense-flowered | Lupinus densiflorus | Not applicable | BC | May 2005 |
| Vascular Plants | ↔ | Lupine, Prairie | Lupinus lepidus | Not applicable | BC | April 2009 |
| Vascular Plants | (no symbol) | Lupine, Streambank | Lupinus rivularis | Not applicable | BC | November 2002 |
| Vascular Plants | (no symbol) | Maleberry | Lyonia ligustrina | Not applicable | NS | November 2020 |
| Vascular Plants | (no symbol) | Mallow, Virginia | Sida hermaphrodita | Not applicable | ON | April 2010 |
| Vascular Plants | ↔ | Manroot, Coastal | Marah oregana | Not applicable | BC | December 2022 |
| Vascular Plants | (no symbol) | Meconella, White | Meconella oregana | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Microseris, Coast | Microseris bigelovii | Not applicable | BC | April 2006 |
| Vascular Plants | (no symbol) | Milkweed, Four-leaved | Asclepias quadrifolia | Not applicable | ON | April 2010 |
| Vascular Plants | ↔ | Milkwort, Pink | Polygala incarnata | Not applicable | ON | November 2009 |
| Vascular Plants | ↔ | Mountain-mint, Hoary | Pycnanthemum incanum | Not applicable | ON | November 2011 |
| Vascular Plants | ↔ | Mulberry, Red | Morus rubra | Not applicable | ON | November 2014 |
| Vascular Plants | ↑ | Orchid, Eastern Prairie Fringed | Platanthera leucophaea | Not applicable | ON | May 2003 |
| Vascular Plants | ↑ | Orchid, Phantom | Cephalanthera austiniae | Not applicable | BC | November 2014 |
| Vascular Plants | ↔ | Orchid, Western Prairie Fringed | Platanthera praeclara | Not applicable | MB | November 2016 |
| Vascular Plants | ↔ | Owl-clover, Bearded | Triphysaria versicolor | Not applicable | BC | November 2011 |
| Vascular Plants | (no symbol) | Owl-clover, Grand Coulee | Orthocarpus barbatus | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Owl-clover, Rosy | Orthocarpus bracteosus | Not applicable | BC | May 2004 |
| Vascular Plants | (no symbol) | Owl-clover, Victoria's | Castilleja victoriae | Not applicable | BC | April 2010 |
| Vascular Plants | ↔ | Paintbrush, Golden | Castilleja levisecta | Not applicable | BC | November 2007 |
| Vascular Plants | (no symbol) | Paintbrush, Hairy | Castilleja tenuis | Not applicable | BC | May 2019 |
| Vascular Plants | (no symbol) | Phacelia, Branched | Phacelia ramosissima | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Pine, Limber | Pinus flexilis | Not applicable | BC AB | November 2014 |
| Vascular Plants | (no symbol) | Pine, Whitebark | Pinus albicaulis | Not applicable | BC AB | April 2010 |
| Vascular Plants | ↔ | Plantain, Heart-leaved | Plantago cordata | Not applicable | ON | November 2011 |
| Vascular Plants | ↔ | Pogonia, Large Whorled | Isotria verticillata | Not applicable | ON | November 2011 |
| Vascular Plants | ↔ | Pogonia, Nodding | Triphora trianthophoros | Not applicable | ON | November 2010 |
| Vascular Plants | ↔ | Pogonia, Small Whorled | Isotria medeoloides | Not applicable | ON | May 2011 |
| Vascular Plants | (no symbol) | Pondweed, Ogden's | Potamogeton ogdenii | Not applicable | ON | April 2007 |
| Vascular Plants | (no symbol) | Popcornflower, Fragrant | Plagiobothrys figuratus | Not applicable | BC | April 2008 |
| Vascular Plants | (no symbol) | Pussytoes, Stoloniferous | Antennaria flagellaris | Not applicable | BC | May 2004 |
| Vascular Plants | (no symbol) | Quillwort, Columbia | Isoetes minima | Not applicable | BC | May 2019 |
| Vascular Plants | ↔ | Quillwort, Engelmann's | Isoetes engelmannii | Not applicable | ON | May 2001 |
| Vascular Plants | (no symbol) | Rockcress, Quebec | Boechera quebecensis | Not applicable | QC | November 2017 |
| Vascular Plants | (no symbol) | Rush, Kellogg's | Juncus kelloggii | Not applicable | BC | May 2003 |
| Vascular Plants | (no symbol) | Sand-verbena, Pink | Abronia umbellata | Not applicable | BC | May 2004 |
| Vascular Plants | (no symbol) | Sandwort, Dwarf | Minuartia pusilla | Not applicable | BC | May 2004 |
| Vascular Plants | ↔ | Sedge, False Hop | Carex lupuliformis | Not applicable | ON QC | November 2011 |
| Vascular Plants | ↔ | Sedge, Juniper | Carex juniperorum | Not applicable | ON | May 2000 |
| Vascular Plants | (no symbol) | Silverpuffs, Lindley's False | Uropappus lindleyi | Not applicable | BC | April 2008 |
| Vascular Plants | ↔ | Spike-primrose, Brook | Epilobium torreyi | Not applicable | BC | November 2018 |
| Vascular Plants | (no symbol) | Spike-primrose, Dense | Epilobium densiflorum | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Spike-rush, Bent | Eleocharis geniculata | Great Lakes Plains population | ON | April 2009 |
| Vascular Plants | (no symbol) | Spike-rush, Bent | Eleocharis geniculata | Southern Mountain population | BC | April 2009 |
| Vascular Plants | (no symbol) | Spike-rush, Horsetail | Eleocharis equisetoides | Not applicable | ON | November 2000 |
| Vascular Plants | ↔ | Sundew, Thread-leaved | Drosera filiformis | Not applicable | NS | May 2001 |
| Vascular Plants | (no symbol) | Thistle, Meadow | Cirsium scariosum | Mingan population | QC | May 2022 |
| Vascular Plants | (no symbol) | Thistle, Meadow | Cirsium scariosum | Rocky Mountain population | BC AB | May 2022 |
| Vascular Plants | (no symbol) | Tonella, Small-flowered | Tonella tenella | Not applicable | BC | November 2003 |
| Vascular Plants | ↻ | Toothcup | Rotala ramosior | Southern Mountain population | BC | November 2014 |
| Vascular Plants | ↔ | Tree, Cucumber | Magnolia acuminata | Not applicable | ON | April 2010 |
| Vascular Plants | (no symbol) | Trefoil, Bog Bird’s-foot | Lotus pinnatus | Not applicable | BC | May 2004 |
| Vascular Plants | ↔ | Trillium, Drooping | Trillium flexipes | Not applicable | ON | April 2009 |
| Vascular Plants | (no symbol) | Triteleia, Howell's | Triteleia howellii | Not applicable | BC | May 2003 |
| Vascular Plants | (no symbol) | Valerian, Hairy | Valeriana edulis ciliata | Not applicable | ON | November 2018 |
| Vascular Plants | ↑ | Violet praemorsa subspecies, Yellow Montane | Viola praemorsa praemorsa | Not applicable | BC | November 2007 |
| Vascular Plants | ↑ | Violet, Bird's-foot | Viola pedata | Not applicable | ON | May 2002 |
| Vascular Plants | (no symbol) | Willow, Barrens | Salix jejuna | Not applicable | NL | May 2001 |
| Vascular Plants | ↔ | Wood-poppy | Stylophorum diphyllum | Not applicable | ON | November 2007 |
| Vascular Plants | ↔ | Woolly-heads, Dwarf | Psilocarphus brevissimus | Southern Mountain population | BC | April 2006 |
| Vascular Plants | ↔ | Woolly-heads, Tall | Psilocarphus elatior | Not applicable | BC | April 2018 |
| Mosses | (no symbol) | Beard-moss, Drooping-leaved | Oxystegus recurvifolius | Not applicable | BC | May 2019 |
| Mosses | (no symbol) | Moss, Acuteleaf Small Limestone | Seligeria acutifolia | Not applicable | BC | April 2018 |
| Mosses | (no symbol) | Moss, Carey’s Small Limestone | Seligeria careyana | Not applicable | BC | May 2019 |
| Mosses | (no symbol) | Moss, Dalton's | Daltonia splachnoides | Not applicable | BC | May 2019 |
| Mosses | ↔ | Moss, Margined Streamside | Scouleria marginata | Not applicable | BC | May 2012 |
| Mosses | ↔ | Moss, Nugget | Microbryum vlassovii | Not applicable | BC | November 2016 |
| Mosses | ↔ | Moss, Poor Pocket | Fissidens pauperculus | Not applicable | BC | December 2022 |
| Mosses | ↔ | Moss, Rigid Apple | Bartramia aprica | Not applicable | BC | November 2009 |
| Mosses | (no symbol) | Moss, Roell's Brotherella | Brotherella roellii | Not applicable | BC | November 2010 |
| Mosses | ↔ | Moss, Silver Hair | Fabronia pusilla | Not applicable | BC | May 2012 |
| Mosses | (no symbol) | Yoke-moss, Slender | Zygodon gracilis | Not applicable | BC | November 2019 |
| Lichens | (no symbol) | Lichen, Batwing Vinyl | Leptogium platynum | Not applicable | BC | May 2011 |
| Lichens | ↔ | Lichen, Boreal Felt | Erioderma pedicellatum | Atlantic population | NB NS | November 2014 |
| Lichens | (no symbol) | Lichen, Golden-eye | Teloschistes chrysophthalmus | Great Lakes population | ON | November 2016 |
| Lichens | (no symbol) | Lichen, Pale-bellied Frost | Physconia subpallida | Not applicable | ON QC | November 2009 |
| Lichens | ↔ | Lichen, Vole Ears | Erioderma mollissimum | Not applicable | NB NS NL | May 2021 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Range of occurrence | Assessment date |
|---|---|---|---|---|---|---|
| Mammals | ↔ | Bat, Pallid | Antrozous pallidus | Not applicable | BC | November 2010 |
| Mammals | ↔ | Bison, Plains | Bison bison bison | Not applicable | BC AB SK | November 2013 |
| Mammals | ↔ | Caribou | Rangifer tarandus | Boreal population | YT NT BC AB SK MB ON QC NL | November 2014 |
| Mammals | (no symbol) | Caribou | Rangifer tarandus | Barren-ground population | YT NT NU AB SK MB | November 2016 |
| Mammals | ↓ | Caribou, Peary | Rangifer tarandus pearyi | Not applicable | NT NU | November 2015 |
| Mammals | ↔ | Ermine haidarum subspecies | Mustela erminea haidarum | Not applicable | BC | May 2015 |
| Mammals | ↔ | Fox, Gray | Urocyon cinereoargenteus | Not applicable | ON | November 2015 |
| Mammals | ↔ | Fox, Swift | Vulpes velox | Not applicable | AB SK | May 2021 |
| Mammals | ↑ | Prairie Dog, Black-tailed | Cynomys ludovicianus | Not applicable | SK | November 2011 |
| Mammals | ↔ | Seal, Northern Fur | Callorhinus ursinus | Not applicable | BC Pacific Ocean | December 2022 |
| Mammals | ↓ | Whale, Beluga | Delphinapterus leucas | Eastern Hudson Bay population | NU QC NL Arctic Ocean Atlantic Ocean | November 2020 |
| Mammals | ↑ | Whale, Killer | Orcinus orca | Northeast Pacific offshore population | Pacific Ocean | November 2008 |
| Mammals | ↔ | Whale, Killer | Orcinus orca | Northeast Pacific northern resident population | Pacific Ocean | November 2008 |
| Mammals | ↔ | Whale, Killer | Orcinus orca | Northeast Pacific transient population | Pacific Ocean | November 2008 |
| Mammals | ↻ | Wolf, Eastern | Canis sp. cf. lycaon | Not applicable | ON QC | May 2015 |
| Birds | ↔ | Albatross, Short-tailed | Phoebastria albatrus | Not applicable | BC Pacific Ocean | November 2013 |
| Birds | ↔ | Bittern, Least | Ixobrychus exilis | Not applicable | MB ON QC NB NS | April 2009 |
| Birds | (no symbol) | Bunting, Lark | Calamospiza melanocorys | Not applicable | AB SK MB | April 2017 |
| Birds | ↓ | Crossbill percna subspecies, Red | Loxia curvirostra percna | Not applicable | QC NL | April 2016 |
| Birds | (no symbol) | Godwit, Hudsonian | Limosa haemastica | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | May 2019 |
| Birds | ↔ | Goshawk laingi subspecies, Northern | Accipiter gentilis laingi | Not applicable | BC | May 2013 |
| Birds | ↻ | Knot roselaari subspecies, Red | Calidris canutus roselaari | Not applicable | YT BC | November 2020 |
| Birds | ↑ | Longspur, McCown's | Rhynchophanes mccownii | Not applicable | AB SK | April 2016 |
| Birds | (no symbol) | Meadowlark, Eastern | Sturnella magna | Not applicable | ON QC NB NS | May 2011 |
| Birds | ↔ | Murrelet, Marbled | Brachyramphus marmoratus | Not applicable | BC | May 2012 |
| Birds | ↔ | Owl brooksi subspecies, Northern Saw-whet | Aegolius acadicus brooksi | Not applicable | BC | November 2017 |
| Birds | ↑ | Owl, Barn | Tyto alba | Western population | BC | November 2010 |
| Birds | ↑ | Owl, Short-eared | Asio flammeus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | May 2021 |
| Birds | ↔ | Pipit, Sprague's | Anthus spragueii | Not applicable | AB SK MB | April 2010 |
| Birds | ↑ | Screech-owl kennicottii subspecies, Western | Megascops kennicottii kennicottii | Not applicable | BC | May 2012 |
| Birds | ↓ | Screech-owl macfarlanei subspecies, Western | Megascops kennicottii macfarlanei | Not applicable | BC | May 2012 |
| Birds | ↔ | Shrike Prairie subspecies, Loggerhead | Lanius ludovicianus excubitorides | Not applicable | AB SK MB | May 2014 |
| Birds | (no symbol) | Storm-Petrel, Leach's | Oceanodroma leucorhoa | Atlantic population | QC NB PE NS NL Atlantic Ocean | November 2020 |
| Birds | (no symbol) | Swallow, Bank | Riparia riparia | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | May 2013 |
| Birds | ↔ | Swift, Chimney | Chaetura pelagica | Not applicable | SK MB ON QC NB NS | April 2018 |
| Birds | ↔ | Thrush, Bicknell's | Catharus bicknelli | Not applicable | QC NB NS | December 2022 |
| Birds | (no symbol) | Thrush, Wood | Hylocichla mustelina | Not applicable | ON QC NB NS | November 2012 |
| Birds | (no symbol) | Warbler, Golden-winged | Vermivora chrysoptera | Not applicable | MB ON QC | April 2006 |
| Birds | ↑ | Waterthrush, Louisiana | Parkesia motacilla | Not applicable | ON QC | November 2015 |
| Birds | ↑ | Woodpecker, Lewis's | Melanerpes lewis | Not applicable | BC | April 2010 |
| Birds | (no symbol) | Yellowlegs, Lesser | Tringa flavipes | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | November 2020 |
| Reptiles | ↓ | Foxsnake, Eastern | Pantherophis vulpinus | Carolinian population | ON | December 2021 |
| Reptiles | ↓ | Foxsnake, Eastern | Pantherophis vulpinus | Great Lakes / St. Lawrence population | ON | December 2021 |
| Reptiles | ↔ | Gophersnake, Great Basin | Pituophis catenifer deserticola | Not applicable | BC | May 2013 |
| Reptiles | ↻ | Massasauga | Sistrurus catenatus | Great Lakes / St. Lawrence population | ON | November 2012 |
| Reptiles | ↔ | Racer, Eastern Yellow-bellied | Coluber constrictor flaviventris | Not applicable | AB SK | November 2015 |
| Reptiles | ↑ | Racer, Western Yellow-bellied | Coluber constrictor mormon | Not applicable | BC | November 2015 |
| Reptiles | ↔ | Ratsnake, Gray | Pantherophis spiloides | Great Lakes / St. Lawrence population | ON | April 2018 |
| Reptiles | ↔ | Rattlesnake, Western | Crotalus oreganus | Not applicable | BC | May 2015 |
| Reptiles | ↔ | Ribbonsnake, Eastern | Thamnophis sauritus | Atlantic population | NS | November 2012 |
| Reptiles | ↔ | Snake, Eastern Hog-nosed | Heterodon platirhinos | Not applicable | ON | May 2021 |
| Reptiles | ↻ | Snake, Sharp-tailed | Contia tenuis | Pacific Coast population | BC | December 2021 |
| Reptiles | ↓ | Turtle, Western Painted | Chrysemys picta bellii | Pacific Coast population | BC | November 2016 |
| Reptiles | ↔ | Turtle, Wood | Glyptemys insculpta | Not applicable | ON QC NB NS | November 2018 |
| Amphibians | ↓ | Frog, Rocky Mountain Tailed | Ascaphus montanus | Not applicable | BC | November 2013 |
| Amphibians | ↻ | Frog, Western Chorus | Pseudacris triseriata | Great Lakes / St. Lawrence - Canadian Shield population | ON QC | April 2008 |
| Amphibians | ↔ | Salamander, Coastal Giant | Dicamptodon tenebrosus | Not applicable | BC | May 2014 |
| Amphibians | ↻ | Salamander, Spring | Gyrinophilus porphyriticus | Adirondack / Appalachian population | QC | May 2011 |
| Amphibians | ↔ | Spadefoot, Great Basin | Spea intermontana | Not applicable | BC | November 2019 |
| Fishes | ↻ | Chub, Lake | Couesius plumbeus | Liard Hot Springs populations | BC | November 2018 |
| Fishes | ↻ | Chub, Lake | Couesius plumbeus | Atlin Warm Springs populations | BC | November 2018 |
| Fishes | ↔ | Cisco, Shortjaw | Coregonus zenithicus | Not applicable | NT AB SK MB ON | May 2003 |
| Fishes | ↑ | Dace, Umatilla | Rhinichthys umatilla | Not applicable | BC | April 2010 |
| Fishes | ↻ | Darter, Eastern Sand | Ammocrypta pellucida | West Lake population | ON | May 2022 |
| Fishes | ↻ | Darter, Eastern Sand | Ammocrypta pellucida | Southwestern Ontario population | ON | May 2022 |
| Fishes | ↑ | Eel, American | Anguilla rostrata | Not applicable | ON QC NB PE NS NL Atlantic Ocean | May 2012 |
| Fishes | (no symbol) | HakeWhite, | Urophycis tenuis | Atlantic and Northern Gulf of St. Lawrence population | Atlantic Ocean | November 2013 |
| Fishes | ↔ | Lamprey, Vancouver | Entosphenus macrostomus | Not applicable | BC | November 2017 |
| Fishes | (no symbol) | Lumpfish | Cyclopterus lumpus | Not applicable | NU MB ON QC NB PE NS NL Atlantic Ocean | November 2017 |
| Fishes | (no symbol) | Minnow, Plains | Hybognathus placitus | Not applicable | SK | May 2012 |
| Fishes | ↑ | Minnow, Pugnose | Opsopoeodus emiliae | Not applicable | ON | May 2012 |
| Fishes | ↓ | Minnow, Western Silvery | Hybognathus argyritis | Not applicable | AB | November 2017 |
| Fishes | (no symbol) | Plaice, American | Hippoglossoides platessoides | Newfoundland and Labrador population | Atlantic Ocean | April 2009 |
| Fishes | (no symbol) | Plaice, American | Hippoglossoides platessoides | Maritimes population | Atlantic Ocean | April 2009 |
| Fishes | (no symbol) | Redfish, Acadian | Sebastes fasciatus | Atlantic population | Atlantic Ocean | April 2010 |
| Fishes | (no symbol) | Redfish, Deepwater | Sebastes mentella | Northern population | Atlantic Ocean | April 2010 |
| Fishes | ↔ | Redhorse, Black | Moxostoma duquesnei | Not applicable | ON | May 2015 |
| Fishes | (no symbol) | Rockfish, Canary | Sebastes pinniger | Not applicable | Pacific Ocean | November 2007 |
| Fishes | (no symbol) | Rockfish, Quillback | Sebastes maliger | Not applicable | Pacific Ocean | November 2009 |
| Fishes | ↑ | Rockfish, Yelloweye | Sebastes ruberrimus | Pacific Ocean inside waters population | BC Pacific Ocean | November 2020 |
| Fishes | ↑ | Rockfish, Yelloweye | Sebastes ruberrimus | Pacific Ocean outside waters population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Rockfish, Yellowmouth | Sebastes reedi | Not applicable | Pacific Ocean | April 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | South Newfoundland population | NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Fraser, Ocean, Fall population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Fraser, Stream, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Middle Fraser, Stream, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Middle Fraser, Stream, Spring (MFR+GStr) population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Southern Mainland Boundary Bay, Ocean, Fall population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | West Vancouver Island, Ocean, Fall (South) population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | West Vancouver Island, Ocean, Fall (Nootka and Kyuquot) population | BC Pacific Ocean | November 2020 |
| Fishes | ↓ | Salmon, Coho | Oncorhynchus kisutch | Interior Fraser population | BC Pacific Ocean | November 2016 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | North Barriere-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Widgeon (River-Type) population | BC Pacific Ocean | November 2017 |
| Fishes | ↻ | Sculpin, Rocky Mountain | Cottus sp. | Missouri River populations | AB | November 2019 |
| Fishes | ↻ | Sculpin, Rocky Mountain | Cottus sp. | Saskatchewan - Nelson River populations | AB | November 2019 |
| Fishes | ↓ | Shiner, Pugnose | Notropis anogenus | Not applicable | ON | May 2013 |
| Fishes | ↑ | Shiner, Silver | Notropis photogenis | Not applicable | ON | May 2011 |
| Fishes | (no symbol) | Stickleback, Little Quarry Lake Benthic Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2015 |
| Fishes | (no symbol) | Stickleback, Little Quarry Lake Limnetic Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2015 |
| Fishes | (no symbol) | Sturgeon, Atlantic | Acipenser oxyrinchus | Maritimes populations | NB NS Atlantic Ocean | May 2011 |
| Fishes | (no symbol) | Sturgeon, Atlantic | Acipenser oxyrinchus | St. Lawrence populations | QC Atlantic Ocean | May 2011 |
| Fishes | ↔ | Sturgeon, Lake | Acipenser fulvescens | Great Lakes - Upper St. Lawrence populations | ON QC | April 2017 |
| Fishes | ↻ | Sturgeon, White | Acipenser transmontanus | Lower Fraser River population | BC | November 2012 |
| Fishes | ↻ | Sucker, Cordilleran | Pantosteus bondi | Not applicable | BC | December 2022 |
| Fishes | ↻ | Sucker, Plains | Pantosteus jordani | Missouri population | AB SK | December 2022 |
| Fishes | ↓ | Sucker, Salish | Catostomus sp. cf. catostomus | Not applicable | BC | November 2012 |
| Fishes | (no symbol) | Trout, Bull | Salvelinus confluentus | Saskatchewan - Nelson Rivers populations | AB | November 2012 |
| Fishes | ↔ | Trout, Westslope Cutthroat | Oncorhynchus clarkii lewisi | Saskatchewan - Nelson Rivers populations | AB | November 2016 |
| Fishes | (no symbol) | Whitefish, European | Coregonus lavaretus | Dezadeash Lake large-bodied population | YT | April 2018 |
| Fishes | ↻ | Whitefish, European | Coregonus lavaretus | Dezadeash Lake small-bodied population | YT | April 2018 |
| Fishes | ↻ | Whitefish, European | Coregonus lavaretus | Little Teslin Lake small-bodied population | YT | April 2018 |
| Fishes | ↻ | Whitefish, European | Coregonus lavaretus | Squanga Lake small-bodied population | YT | April 2018 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Opeongo Lake large-bodied population | ON | April 2018 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Squanga Lake large-bodied population | YT | April 2018 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Opeongo Lake small-bodied population | ON | April 2018 |
| Fishes | (no symbol) | Whitefish, Lake | Coregonus clupeaformis | Little Teslin Lake large-bodied population | YT | April 2018 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Great Lakes - Upper St. Lawrence populations | ON | November 2016 |
| Fishes | ↔ | Wolffish, Northern | Anarhichas denticulatus | Not applicable | Arctic Ocean Atlantic Ocean | November 2012 |
| Fishes | ↔ | Wolffish, Spotted | Anarhichas minor | Not applicable | Arctic Ocean Atlantic Ocean | November 2012 |
| Arthropods | (no symbol) | Bumble Bee occidentalis subspecies, Western | Bombus occidentalis occidentalis | Not applicable | BC AB SK | May 2014 |
| Arthropods | (no symbol) | Bumble Bee, Suckley's Cuckoo | Bombus suckleyi | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | November 2019 |
| Arthropods | ↔ | Flower Moth, Verna's | Schinia verna | Not applicable | AB SK MB | November 2017 |
| Arthropods | (no symbol) | Grasshopper, Lake Huron | Trimerotropis huroniana | Not applicable | ON | November 2015 |
| Arthropods | ↻ | Hairstreak, Half-moon | Satyrium semiluna | Okanagan-Similkameen population | BC | December 2022 |
| Arthropods | (no symbol) | Hairstreak, Northern Oak | Satyrium favonius ontario | Not applicable | ON | May 2022 |
| Arthropods | ↓ | Moth, Dusky Dune | Copablepharon longipenne | Not applicable | AB SK MB | May 2022 |
| Arthropods | (no symbol) | Shieldback, Davis's | Atlanticus davisi | Not applicable | ON | November 2020 |
| Arthropods | ↔ | Skipper vestris subspecies, Dun | Euphyes vestris vestris | Not applicable | BC | May 2013 |
| Arthropods | (no symbol) | Sweat Bee, Sable Island | Lasioglossum sablense | Not applicable | NS | November 2014 |
| Arthropods | (no symbol) | Tiger Beetle, Audouin’s Night-stalking | Omus audouini | Not applicable | BC | November 2013 |
| Arthropods | (no symbol) | Tiger Beetle, Gibson's Big Sand | Cicindela formosa gibsoni | Not applicable | AB SK | November 2012 |
| Arthropods | (no symbol) | Tiger Moth, Island | Grammia complicata | Not applicable | BC | May 2013 |
| Molluscs | ↔ | Jumping-slug, Dromedary | Hemphillia dromedarius | Not applicable | BC | May 2014 |
| Molluscs | (no symbol) | Mantleslug, Carolina | Philomycus carolinianus | Not applicable | ON | November 2019 |
| Molluscs | ↓ | Mapleleaf | Quadrula quadrula | Saskatchewan – Nelson Rivers population | MB | November 2016 |
| Molluscs | ↔ | Mud-piddock, Atlantic | Barnea truncata | Not applicable | NS Atlantic Ocean | May 2021 |
| Molluscs | ↓ | Taildropper, Blue-grey | Prophysaon coeruleum | Not applicable | BC | April 2016 |
| Molluscs | (no symbol) | Wartyback, Purple | Cyclonaias tuberculata | Not applicable | ON | May 2021 |
| Molluscs | (no symbol) | Wartyback, Threehorn | Obliquaria reflexa | Not applicable | ON | May 2013 |
| Vascular Plants | (no symbol) | Arnica, Griscom's | Arnica griscomii griscomii | Not applicable | QC NL | November 2014 |
| Vascular Plants | (no symbol) | Ash, Black | Fraxinus nigra | Not applicable | MB ON QC NB PE NS NL | November 2018 |
| Vascular Plants | ↑ | Ash, Blue | Fraxinus quadrangulata | Not applicable | ON | November 2014 |
| Vascular Plants | ↔ | Aster, Western Silvery | Symphyotrichum sericeum | Not applicable | MB ON | May 2021 |
| Vascular Plants | ↔ | Aster, White Wood | Eurybia divaricata | Not applicable | ON QC | November 2002 |
| Vascular Plants | ↑ | Aster, Willowleaf | Symphyotrichum praealtum | Not applicable | ON | May 2003 |
| Vascular Plants | (no symbol) | Baccharis, Eastern | Baccharis halimifolia | Not applicable | NS | November 2011 |
| Vascular Plants | ↑ | Bartonia, Branched | Bartonia paniculata paniculata | Not applicable | ON | November 2003 |
| Vascular Plants | ↔ | Blazing Star, Dense | Liatris spicata | Not applicable | ON | April 2010 |
| Vascular Plants | ↔ | Coffee-tree, Kentucky | Gymnocladus dioicus | Not applicable | ON | May 2021 |
| Vascular Plants | ↓ | Cryptantha, Tiny | Cryptantha minima | Not applicable | AB SK | May 2012 |
| Vascular Plants | ↔ | Deerberry | Vaccinium stamineum | Not applicable | ON | November 2020 |
| Vascular Plants | (no symbol) | Desert-parsley, Gray's | Lomatium grayi | Not applicable | BC | November 2008 |
| Vascular Plants | (no symbol) | Fern, Lemmon's Holly | Polystichum lemmonii | Not applicable | BC | May 2003 |
| Vascular Plants | (no symbol) | Fern, Mountain Holly | Polystichum scopulinum | Not applicable | BC QC NL | May 2005 |
| Vascular Plants | (no symbol) | Foxglove, Fern-leaved Yellow False | Aureolaria pedicularia | Not applicable | ON | April 2018 |
| Vascular Plants | (no symbol) | Foxglove, Smooth Yellow False | Aureolaria flava | Not applicable | ON | April 2018 |
| Vascular Plants | ↻ | Goldenrod, Showy | Solidago speciosa | Boreal population | ON | November 2010 |
| Vascular Plants | ↑ | Goosefoot, Smooth | Chenopodium subglabrum | Not applicable | AB SK MB | April 2006 |
| Vascular Plants | ↔ | Greenbrier, Round-leaved | Smilax rotundifolia | Great Lakes Plains population | ON | November 2007 |
| Vascular Plants | ↑ | Hackberry, Dwarf | Celtis tenuifolia | Not applicable | ON | November 2003 |
| Vascular Plants | ↑ | Hyacinth, Wild | Camassia scilloides | Not applicable | ON | May 2002 |
| Vascular Plants | ↔ | Jacob's-ladder, Van Brunt's | Polemonium vanbruntiae | Not applicable | QC | November 2002 |
| Vascular Plants | ↓ | Lady's-slipper, Small White | Cypripedium candidum | Not applicable | MB ON | November 2014 |
| Vascular Plants | ↑ | Locoweed, Hare-footed | Oxytropis lagopus | Not applicable | AB | May 2014 |
| Vascular Plants | ↑ | Meadowfoam, Macoun's | Limnanthes macounii | Not applicable | BC | November 2004 |
| Vascular Plants | ↔ | Mosquito-fern, Mexican | Azolla mexicana | Not applicable | BC | November 2008 |
| Vascular Plants | ↔ | Mouse-ear-cress, Slender | Crucihimalaya virgata | Not applicable | AB SK | December 2022 |
| Vascular Plants | (no symbol) | Paintbrush, Cliff | Castilleja rupicola | Not applicable | BC | May 2005 |
| Vascular Plants | (no symbol) | Pea, Silky Beach | Lathyrus littoralis | Not applicable | BC | May 2013 |
| Vascular Plants | ↑ | Pepperbush, Sweet | Clethra alnifolia | Not applicable | NS | May 2014 |
| Vascular Plants | (no symbol) | Phlox, Showy | Phlox speciosa occidentalis | Not applicable | BC | November 2004 |
| Vascular Plants | (no symbol) | Popcornflower, Slender | Plagiobothrys tenellus | Not applicable | BC | November 2008 |
| Vascular Plants | ↑ | Quillwort, Bolander's | Isoetes bolanderi | Not applicable | AB | April 2006 |
| Vascular Plants | ↓ | Sanicle, Bear's-foot | Sanicula arctopoides | Not applicable | BC | November 2015 |
| Vascular Plants | (no symbol) | Sanicle, Purple | Sanicula bipinnatifida | Not applicable | BC | May 2001 |
| Vascular Plants | ↔ | Soapweed | Yucca glauca | Not applicable | AB SK | May 2013 |
| Vascular Plants | ↔ | Spiderwort, Western | Tradescantia occidentalis | Not applicable | AB SK MB | November 2002 |
| Vascular Plants | (no symbol) | Thistle, Hill's | Cirsium hillii | Not applicable | ON | November 2004 |
| Vascular Plants | ↻ | Toothcup | Rotala ramosior | Great Lakes Plains population | ON | November 2014 |
| Vascular Plants | ↓ | Twayblade, Purple | Liparis liliifolia | Not applicable | ON QC | November 2010 |
| Vascular Plants | ↔ | Water-willow, American | Justicia americana | Not applicable | ON QC | May 2021 |
| Vascular Plants | ↔ | Willow, Green-scaled | Salix chlorolepis | Not applicable | QC | November 2020 |
| Vascular Plants | ↓ | Wintergreen, Spotted | Chimaphila maculata | Not applicable | ON QC | April 2017 |
| Vascular Plants | ↓ | Woodsia, Blunt-lobed | Woodsia obtusa | Not applicable | ON QC | April 2007 |
| Mosses | ↔ | Bryum, Porsild's | Haplodontium macrocarpum | Not applicable | NU BC AB NL | November 2017 |
| Mosses | (no symbol) | Moss, Alkaline Wing-nerved | Pterygoneurum kozlovii | Not applicable | BC SK | November 2004 |
| Mosses | ↔ | Moss, Haller's Apple | Bartramia halleriana | Not applicable | BC AB | November 2011 |
| Mosses | ↓ | Moss, Spoon-leaved | Bryoandersonia illecebra | Not applicable | ON | November 2017 |
| Lichens | (no symbol) | Lichen, Black-foam | Anzia colpodes | Not applicable | ON QC NB NS | May 2015 |
| Lichens | (no symbol) | Lichen, Crumpled Tarpaper | Collema coniophilum | Not applicable | BC | November 2010 |
| Lichens | ↑ | Lichen, Cryptic Paw | Nephroma occultum | Not applicable | BC | May 2019 |
| Lichens | (no symbol) | Lichen, Scaly Fringe | Heterodermia squamulosa | Not applicable | NB NS | December 2022 |
| Lichens | ↓ | Lichen, Seaside Centipede | Heterodermia sitchensis | Not applicable | BC | May 2021 |
| Lichens | (no symbol) | Lichen, Smoker’s Lung | Lobaria retigera | Not applicable | BC | April 2018 |
| Lichens | (no symbol) | Lichen, White-rimmed Shingle | Fuscopannaria leucosticta | Not applicable | ON QC NB NS | May 2019 |
| Lichens | (no symbol) | Lichen, Wrinkled Shingle | Pannaria lurida | Not applicable | NB PE NS NL | April 2016 |
| Lichens | (no symbol) | Waterfan, Eastern | Peltigera hydrothyria | Not applicable | QC NB NS | November 2013 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Range of occurrence | Assessment date |
| Mammals | ↑ | Badger taxus subspecies, American | Taxidea taxus taxus | Not applicable | AB SK MB ON | November 2012 |
| Mammals | ↔ | Bat, Spotted | Euderma maculatum | Not applicable | BC | November 2014 |
| Mammals | ↻ | Bear, Grizzly | Ursus arctos | Western population | YT NT NU BC AB SK MB | May 2012 |
| Mammals | ↔ | Bear, Polar | Ursus maritimus | Not applicable | YT NT NU MB ON QC NL Arctic Ocean | November 2018 |
| Mammals | ↔ | Beaver, Mountain | Aplodontia rufa | Not applicable | BC | December 2022 |
| Mammals | ↓ | Bison, Wood | Bison bison athabascae | Not applicable | YT NT BC AB MB | November 2013 |
| Mammals | ↑ | Caribou | Rangifer tarandus | Newfoundland population | NL | November 2014 |
| Mammals | ↻ | Caribou | Rangifer tarandus | Northern Mountain population | YT NT BC | May 2014 |
| Mammals | ↔ | Cottontail nuttallii subspecies, Nuttall's | Sylvilagus nuttallii nuttallii | Not applicable | BC | November 2016 |
| Mammals | ↓ | Marten, American | Martes americana atrata | Newfoundland population | NL | May 2022 |
| Mammals | ↔ | Mole, Eastern | Scalopus aquaticus | Not applicable | ON | November 2010 |
| Mammals | ↑ | Narwhal | Monodon monoceros | Not applicable | Arctic Ocean | November 2004 |
| Mammals | ↔ | Otter, Sea | Enhydra lutris | Not applicable | BC Pacific Ocean | May 2022 |
| Mammals | (no symbol) | Pika, Collared | Ochotona collaris | Not applicable | YT NT BC | November 2011 |
| Mammals | ↔ | Porpoise, Harbour | Phocoena phocoena vomerina | Pacific Ocean population | BC Pacific Ocean Arctic Ocean | April 2016 |
| Mammals | ↔ | Porpoise, Harbour | Phocoena phocoena | Northwest Atlantic population | NU QC NB PE NS NL Atlantic Ocean | May 2022 |
| Mammals | ↔ | Sea Lion, Steller | Eumetopias jubatus | Not applicable | BC Pacific Ocean | November 2013 |
| Mammals | ↑ | Seal, Ringed | Pusa hispida | Not applicable | YT NT NU MB ON QC NL Pacific Ocean Arctic Ocean Atlantic Ocean | November 2019 |
| Mammals | ↔ | Vole, Woodland | Microtus pinetorum | Not applicable | ON QC | November 2010 |
| Mammals | ↻ | Walrus, Atlantic | Odobenus rosmarus rosmarus | Central / Low Arctic population | NU MB ON QC NL Arctic Ocean Atlantic Ocean | April 2017 |
| Mammals | ↻ | Walrus, Atlantic | Odobenus rosmarus rosmarus | High Arctic population | NU Arctic Ocean | April 2017 |
| Mammals | ↔ | Whale, Beluga | Delphinapterus leucas | Eastern High Arctic - Baffin Bay population | NU Arctic Ocean | November 2020 |
| Mammals | ↔ | Whale, Bowhead | Balaena mysticetus | Bering-Chukchi-Beaufort population | Arctic Ocean | April 2009 |
| Mammals | ↻ | Whale, Bowhead | Balaena mysticetus | Eastern Canada-West Greenland population | Arctic Ocean | April 2009 |
| Mammals | ↔ | Whale, Fin | Balaenoptera physalus | Atlantic population | Atlantic Ocean | May 2019 |
| Mammals | ↓ | Whale, Fin | Balaenoptera physalus | Pacific population | Pacific Ocean | May 2019 |
| Mammals | ↔ | Whale, Humpback | Megaptera novaeangliae kuzira | North Pacific population | BC Pacific Ocean | December 2022 |
| Mammals | ☼ | Whale, Killer | Orcinus orca | Northwest Atlantic / Eastern Arctic population | Arctic Ocean Atlantic Ocean | November 2008 |
| Mammals | ↑ | Whale, Northern Bottlenose | Hyperoodon ampullatus | Davis Strait-Baffin Bay-Labrador Sea population | Atlantic Ocean | May 2011 |
| Mammals | ↔ | Whale, Sowerby's Beaked | Mesoplodon bidens | Not applicable | Atlantic Ocean | May 2019 |
| Mammals | ↻ | Wolverine | Gulo gulo | Not applicable | YT NT NU BC AB SK MB ON QC NL | May 2014 |
| Birds | (no symbol) | Albatross, Black-footed | Phoebastria nigripes | Not applicable | Pacific Ocean | April 2007 |
| Birds | (no symbol) | Auklet, Cassin's | Ptychoramphus aleuticus | Not applicable | BC Pacific Ocean | November 2014 |
| Birds | ↔ | Blackbird, Rusty | Euphagus carolinus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 2017 |
| Birds | ↓ | Bobolink | Dolichonyx oryzivorus | Not applicable | BC AB SK MB ON QC NB PE NS NL | May 2022 |
| Birds | ↔ | Curlew, Long-billed | Numenius americanus | Not applicable | BC AB SK | May 2011 |
| Birds | ↔ | Duck, Harlequin | Histrionicus histrionicus | Eastern population | NU QC NB NS NL | November 2013 |
| Birds | ↔ | Falcon pealei subspecies, Peregrine | Falco peregrinus pealei | Not applicable | BC | November 2017 |
| Birds | ↓ | Flycatcher, Olive-sided | Contopus cooperi | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 2018 |
| Birds | ↔ | Goldeneye, Barrow's | Bucephala islandica | Eastern population | QC NB PE NS NL | May 2011 |
| Birds | (no symbol) | Grebe, Horned | Podiceps auritus | Western population | YT NT NU BC AB SK MB ON NB NS Pacific Ocean Atlantic Ocean | April 2009 |
| Birds | (no symbol) | Grebe, Western | Aechmophorus occidentalis | Not applicable | BC AB SK MB | May 2014 |
| Birds | (no symbol) | Grosbeak, Evening | Coccothraustes vespertinus | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | November 2016 |
| Birds | ↓ | Hawk, Ferruginous | Buteo regalis | Not applicable | AB SK MB | May 2021 |
| Birds | ↻ | Knot rufa subspecies, Red | Calidris canutus rufa | Northeastern South America wintering population | NT NU AB SK MB ON QC NB PE NS NL | November 2020 |
| Birds | ↔ | Murrelet, Ancient | Synthliboramphus antiquus | Not applicable | BC Pacific Ocean | November 2014 |
| Birds | ↓ | Nighthawk, Common | Chordeiles minor | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 2018 |
| Birds | ↔ | Owl, Flammulated | Otus flammeolus | Not applicable | BC | April 2010 |
| Birds | (no symbol) | Phalarope, Red-necked | Phalaropus lobatus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL Pacific Ocean Arctic Ocean Atlantic Ocean | November 2014 |
| Birds | ↔ | Pigeon, Band-tailed | Patagioenas fasciata | Not applicable | BC | May 2021 |
| Birds | ↔ | Rail, Yellow | Coturnicops noveboracensis | Not applicable | NT BC AB SK MB ON QC NB | November 2009 |
| Birds | (no symbol) | Sandpiper, Buff-breasted | Tryngites subruficollis | Not applicable | YT NT NU BC AB SK MB ON QC | May 2012 |
| Birds | (no symbol) | Sparrow pratensis subspecies, Grasshopper | Ammodramus savannarum pratensis | Not applicable | ON QC | November 2013 |
| Birds | ↔ | Sparrow princeps subspecies, Savannah | Passerculus sandwichensis princeps | Not applicable | NS | May 2023 |
| Birds | ↑ | Sparrow, Baird's | Ammodramus bairdii | Not applicable | AB SK MB | May 2012 |
| Birds | (no symbol) | Sparrow, Harris's | Zonotrichia querula | Not applicable | NT NU AB SK MB ON | April 2017 |
| Birds | ↓ | Swallow, Barn | Hirundo rustica | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | May 2021 |
| Birds | ↓ | Warbler, Canada | Cardellina canadensis | Not applicable | YT NT BC AB SK MB ON QC NB PE NS | November 2020 |
| Birds | ↓ | Whip-poor-will, Eastern | Antrostomus vociferus | Not applicable | SK MB ON QC NB PE NS | December 2022 |
| Birds | (no symbol) | Wood-pewee, Eastern | Contopus virens | Not applicable | SK MB ON QC NB PE NS | November 2012 |
| Reptiles | ↔ | Boa, Northern Rubber | Charina bottae | Not applicable | BC | April 2016 |
| Reptiles | ☼ | Bullsnake | Pituophis catenifer sayi | Not applicable | AB SK | April 2017 |
| Reptiles | ↓ | Lizard, Greater Short-horned | Phrynosoma hernandesi | Not applicable | AB SK | November 2018 |
| Reptiles | ↔ | Milksnake, Eastern | Lampropeltis triangulum | Not applicable | ON QC | May 2014 |
| Reptiles | (no symbol) | Rattlesnake, Prairie | Crotalus viridis | Not applicable | AB SK | May 2015 |
| Reptiles | ↔ | Ribbonsnake, Eastern | Thamnophis sauritus | Great Lakes population | ON QC | November 2012 |
| Reptiles | ↔ | Skink, Common Five-lined | Plestiodon fasciatus | Great Lakes / St. Lawrence population | ON | May 2021 |
| Reptiles | ↓ | Skink, Prairie | Plestiodon septentrionalis | Not applicable | MB | November 2017 |
| Reptiles | ↔ | Skink, Western | Plestiodon skiltonianus | Not applicable | BC | November 2014 |
| Reptiles | (no symbol) | Snake, Plains Hog-nosed | Heterodon nasicus | Not applicable | AB SK MB | November 2019 |
| Reptiles | ↓ | Turtle, Eastern Musk | Sternotherus odoratus | Not applicable | ON QC | November 2012 |
| Reptiles | (no symbol) | Turtle, Eastern Painted | Chrysemys picta picta | Not applicable | QC NB NS | April 2018 |
| Reptiles | (no symbol) | Turtle, Midland Painted | Chrysemys picta marginata | Not applicable | ON QC | April 2018 |
| Reptiles | ↔ | Turtle, Northern Map | Graptemys geographica | Not applicable | ON QC | November 2012 |
| Reptiles | (no symbol) | Turtle, Snapping | Chelydra serpentina | Not applicable | SK MB ON QC NB NS | November 2008 |
| Reptiles | ↔ | Turtle, Western Painted | Chrysemys picta bellii | Intermountain - Rocky Mountain population | BC | November 2016 |
| Reptiles | ↓ | Watersnake, Lake Erie | Nerodia sipedon insularum | Not applicable | ON | November 2015 |
| Amphibians | ↔ | Frog, Coastal Tailed | Ascaphus truei | Not applicable | BC | November 2011 |
| Amphibians | ↔ | Frog, Northern Leopard | Lithobates pipiens | Western Boreal/Prairie populations | NT AB SK MB | April 2009 |
| Amphibians | ↔ | Frog, Northern Red-legged | Rana aurora | Not applicable | BC | May 2015 |
| Amphibians | ↔ | Salamander, Coeur d'Alene | Plethodon idahoensis | Not applicable | BC | May 2021 |
| Amphibians | (no symbol) | Salamander, Wandering | Aneides vagrans | Not applicable | BC | May 2014 |
| Amphibians | ↻ | Salamander, Western Tiger | Ambystoma mavortium | Prairie / Boreal population | AB SK MB | November 2012 |
| Amphibians | ↔ | Toad, Great Plains | Anaxyrus cognatus | Not applicable | AB SK MB | May 2023 |
| Amphibians | ↻ | Toad, Western | Anaxyrus boreas | Non-calling population | YT NT BC AB | November 2012 |
| Amphibians | ↻ | Toad, Western | Anaxyrus boreas | Calling population | BC AB | November 2012 |
| Fishes | ↓ | Bass, Striped | Morone saxatilis | Southern Gulf of St. Lawrence population | QC NB PE NS Atlantic Ocean | November 2012 |
| Fishes | ↔ | Buffalo, Bigmouth | Ictiobus cyprinellus | Saskatchewan - Nelson River populations | SK MB | April 2009 |
| Fishes | ↔ | Cisco, Bering | Coregonus laurettae | Not applicable | YT | November 2017 |
| Fishes | ↻ | Cod, Atlantic | Gadus morhua | Arctic Lakes population | NU | April 2010 |
| Fishes | ↻ | Darter, Channel | Percina copelandi | St. Lawrence populations | ON QC | November 2016 |
| Fishes | ↓ | Darter, Eastern Sand | Ammocrypta pellucida | Quebec population | QC | May 2022 |
| Fishes | (no symbol) | Dogfish, North Pacific Spiny | Squalus suckleyi | Not applicable | Pacific Ocean | November 2011 |
| Fishes | (no symbol) | Dogfish, Spiny | Squalus acanthias | Atlantic population | Atlantic Ocean | April 2010 |
| Fishes | (no symbol) | Dolly Varden | Salvelinus malma malma | Western Arctic populations | YT NT | November 2010 |
| Fishes | ↓ | Eulachon | Thaleichthys pacificus | Nass / Skeena Rivers population | BC Pacific Ocean | May 2013 |
| Fishes | ↔ | Killifish, Banded | Fundulus diaphanus | Newfoundland populations | NL | May 2014 |
| Fishes | ↻ | Kiyi, Upper Great Lakes | Coregonus kiyi kiyi | Not applicable | ON | May 2005 |
| Fishes | ↔ | Lamprey, Northern Brook | Ichthyomyzon fossor | Great Lakes - Upper St. Lawrence populations | ON QC | November 2020 |
| Fishes | ↔ | Lamprey, Silver | Ichthyomyzon unicuspis | Great Lakes - Upper St. Lawrence populations | ON QC | November 2020 |
| Fishes | ☼ | Lamprey, Silver | Ichthyomyzon unicuspis | Saskatchewan - Nelson River populations | MB ON | November 2020 |
| Fishes | (no symbol) | Minnow, Brassy | Hybognathus hankinsoni | Missouri population | AB SK | May 2022 |
| Fishes | (no symbol) | Minnow, Brassy | Hybognathus hankinsoni | Pacific population | BC | May 2022 |
| Fishes | (no symbol) | Minnow, Brassy | Hybognathus hankinsoni | Western Arctic population | BC AB | May 2022 |
| Fishes | ↑ | Minnow, Cutlip | Exoglossum maxillingua | Not applicable | ON QC | November 2013 |
| Fishes | ↔ | Pickerel, Grass | Esox americanus vermiculatus | Not applicable | ON QC | November 2014 |
| Fishes | (no symbol) | Redfish, Acadian | Sebastes fasciatus | Bonne Bay population | Atlantic Ocean | April 2010 |
| Fishes | ↔ | Redhorse, River | Moxostoma carinatum | Not applicable | ON QC | November 2015 |
| Fishes | (no symbol) | Rockfish type I, Rougheye | Sebastes sp. type I | Not applicable | Pacific Ocean | April 2007 |
| Fishes | (no symbol) | Rockfish type II, Rougheye | Sebastes sp. type II | Not applicable | Pacific Ocean | April 2007 |
| Fishes | (no symbol) | Rockfish, Darkblotched | Sebastes crameri | Not applicable | Pacific Ocean | November 2009 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Gaspe-Southern Gulf of St. Lawrence population | QC NB PE NS Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Inner St. Lawrence population | QC Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Quebec Western North Shore population | QC Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Quebec Eastern North Shore population | QC Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Lower Fraser, Stream, Spring population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | East Vancouver Island, Ocean, Fall population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Harrison (D/S)-L population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Kamloops-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Francois-Fraser-S population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Alouette-ES population (original) | BC Pacific Ocean | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Coquitlam-ES population (original) | BC Pacific Ocean | December 2021 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Nahatlatch-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Lillooet-Harrison-L population | BC Pacific Ocean | November 2017 |
| Fishes | ↔ | Sculpin, Columbia | Cottus hubbsi | Not applicable | BC | November 2019 |
| Fishes | ↔ | Sculpin, Deepwater | Myoxocephalus thompsonii | Great Lakes - Upper St. Lawrence populations | ON QC | April 2017 |
| Fishes | ↻ | Sculpin, Deepwater | Myoxocephalus thompsonii | Waterton Lake population | AB | April 2017 |
| Fishes | ↔ | Sculpin, Rocky Mountain | Cottus sp. | Pacific populations | BC | November 2019 |
| Fishes | ↓ | Sculpin, Shorthead | Cottus confusus | Not applicable | BC | November 2010 |
| Fishes | (no symbol) | Shark, Basking | Cetorhinus maximus | Atlantic population | Atlantic Ocean | November 2009 |
| Fishes | (no symbol) | Shark, Bluntnose Sixgill | Hexanchus griseus | Not applicable | Pacific Ocean | April 2007 |
| Fishes | ↔ | Shiner, Bridle | Notropis bifrenatus | Not applicable | ON QC | May 2013 |
| Fishes | (no symbol) | Skate, Smooth | Malacoraja senta | Laurentian-Scotian population | QC NB PE NS Atlantic Ocean | May 2012 |
| Fishes | (no symbol) | Skate, Thorny | Amblyraja radiata | Not applicable | NU QC NB PE NS NL Arctic Ocean Atlantic Ocean | May 2012 |
| Fishes | ↔ | Stickleback, Giant Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2013 |
| Fishes | ↔ | Stickleback, Unarmoured Threespine | Gasterosteus aculeatus | Not applicable | BC | November 2013 |
| Fishes | ↔ | Sturgeon, Green | Acipenser medirostris | Not applicable | BC Pacific Ocean | November 2013 |
| Fishes | ↔ | Sturgeon, Lake | Acipenser fulvescens | Southern Hudson Bay - James Bay populations | MB ON QC | April 2017 |
| Fishes | ↔ | Sturgeon, Shortnose | Acipenser brevirostrum | Not applicable | NB NS | May 2015 |
| Fishes | ↻ | Sucker, Plains | Pantosteus jordani | Saskatchewan-Nelson population | AB SK | December 2022 |
| Fishes | ↔ | Sucker, Spotted | Minytrema melanops | Not applicable | ON | November 2014 |
| Fishes | ↻ | Sunfish, Northern | Lepomis peltastes | Great Lakes - Upper St. Lawrence populations | ON QC | April 2016 |
| Fishes | (no symbol) | Thornyhead, Longspine | Sebastolobus altivelis | Not applicable | Pacific Ocean | April 2007 |
| Fishes | ↔ | Tope | Galeorhinus galeus | Not applicable | BC Pacific Ocean | May 2021 |
| Fishes | ↔ | Topminnow, Blackstripe | Fundulus notatus | Not applicable | ON | May 2012 |
| Fishes | (no symbol) | Trout, Bull | Salvelinus confluentus | South Coast British Columbia populations | BC | November 2012 |
| Fishes | (no symbol) | Trout, Bull | Salvelinus confluentus | Western Arctic populations | YT NT BC AB | November 2012 |
| Fishes | ↔ | Trout, Westslope Cutthroat | Oncorhynchus clarkii lewisi | Pacific populations | BC | November 2016 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Waterton Lake population | AB | November 2016 |
| Fishes | ↔ | Wolffish, Atlantic | Anarhichas lupus | Not applicable | Arctic Ocean Atlantic Ocean | November 2012 |
| Arthropods | ↔ | Admiral, Weidemeyer's | Limenitis weidemeyerii | Not applicable | AB | May 2012 |
| Arthropods | (no symbol) | Bumble Bee mckayi subspecies, Western | Bombus occidentalis mckayi | Not applicable | YT NT BC | May 2014 |
| Arthropods | (no symbol) | Bumble Bee, American | Bombus pensylvanicus | Not applicable | ON QC | November 2018 |
| Arthropods | (no symbol) | Bumble Bee, Yellow-banded | Bombus terricola | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | May 2015 |
| Arthropods | ↻ | Clubtail, Riverine | Stylurus amnicola | Not applicable | MB ON QC | May 2023 |
| Arthropods | ↓ | Clubtail, Skillet | Gomphurus ventricosus | Not applicable | ON QC NB NS | May 2022 |
| Arthropods | (no symbol) | Dancer, Vivid | Argia vivida | Not applicable | BC AB | May 2015 |
| Arthropods | (no symbol) | Grappletail | Octogomphus specularis | Not applicable | BC | May 2021 |
| Arthropods | (no symbol) | Grasshopper, Greenish-white | Hypochlora alba | Not applicable | AB SK MB | November 2012 |
| Arthropods | (no symbol) | Grasshopper, Magdalen Islands | Melanoplus madeleineae | Not applicable | QC | November 2016 |
| Arthropods | (no symbol) | Hairstreak, Johnson's | Callophrys johnsoni | Not applicable | BC | May 2022 |
| Arthropods | (no symbol) | Lady Beetle, Transverse | Coccinella transversoguttata | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | November 2016 |
| Arthropods | (no symbol) | Leafhopper, Red-tailed | Aflexia rubranura | Prairie population | MB | April 2018 |
| Arthropods | (no symbol) | Leafhopper, Red-tailed | Aflexia rubranura | Great Lakes Plains population | ON | November 2017 |
| Arthropods | ↓ | Metalmark, Mormon | Apodemia mormo | Prairie population | SK | May 2014 |
| Arthropods | ↔ | Moth, Pale Yellow Dune | Copablepharon grandis | Not applicable | AB SK MB | November 2018 |
| Arthropods | (no symbol) | Oakworm Moth, Manitoba | Anisota manitobensis | Not applicable | MB | November 2019 |
| Arthropods | (no symbol) | Skipper, Dukes' | Euphyes dukesi | Not applicable | ON | May 2022 |
| Arthropods | ↔ | Snaketail, Pygmy | Ophiogomphus howei | Not applicable | ON NB | November 2018 |
| Arthropods | (no symbol) | Spider, Georgia Basin Bog | Gnaphosa snohomish | Not applicable | BC | November 2012 |
| Arthropods | (no symbol) | Tachinid Fly, Dune | Germaria angustata | Not applicable | YT | May 2011 |
| Arthropods | ↓ | Tiger Beetle, Cobblestone | Cicindela marginipennis | Not applicable | NB | May 2021 |
| Arthropods | (no symbol) | Wasp, Yellow Scarab Hunter | Dielis pilipes | Not applicable | BC | November 2018 |
| Molluscs | ↔ | Floater, Brook | Alasmidonta varicosa | Not applicable | NB NS | December 2022 |
| Molluscs | ↔ | Jumping-slug, Warty | Hemphillia glandulosa | Not applicable | BC | May 2013 |
| Molluscs | ↓ | Lampmussel, Wavy-rayed | Lampsilis fasciola | Not applicable | ON | April 2010 |
| Molluscs | ↔ | Lampmussel, Yellow | Lampsilis cariosa | Not applicable | NB NS | November 2013 |
| Molluscs | ↔ | Mantleslug, Magnum | Magnipelta mycophaga | Not applicable | BC | December 2022 |
| Molluscs | ↓ | Mapleleaf | Quadrula quadrula | Great Lakes - Upper St. Lawrence population | ON | November 2016 |
| Molluscs | ↔ | Oyster, Olympia | Ostrea lurida | Not applicable | BC Pacific Ocean | May 2011 |
| Molluscs | ↓ | Pondmussel, Eastern | Ligumia nasuta | Not applicable | ON | April 2017 |
| Molluscs | ↓ | Rainbow | Villosa iris | Not applicable | ON | November 2015 |
| Molluscs | (no symbol) | Slug, Haida Gwaii | Staala gwaii | Not applicable | BC | May 2013 |
| Molluscs | (no symbol) | Slug, Pygmy | Kootenaia burkei | Not applicable | BC | April 2016 |
| Molluscs | (no symbol) | Slug, Sheathed | Zacoleus idahoensis | Not applicable | BC | April 2016 |
| Molluscs | ↔ | Vertigo, Threaded | Vertigo rowellii | Not applicable | BC | May 2022 |
| Vascular Plants | ↓ | Aster, Anticosti | Symphyotrichum anticostense | Not applicable | QC NB | April 2017 |
| Vascular Plants | ↓ | Aster, Crooked-stem | Symphyotrichum prenanthoides | Not applicable | ON | November 2012 |
| Vascular Plants | (no symbol) | Aster, Nahanni | Symphyotrichum nahanniense | Not applicable | NT | May 2014 |
| Vascular Plants | ↓ | Aster, White-top | Sericocarpus rigidus | Not applicable | BC | April 2009 |
| Vascular Plants | (no symbol) | Beggarticks, Vancouver Island | Bidens amplissima | Not applicable | BC | November 2001 |
| Vascular Plants | ↓ | Blue Flag, Western | Iris missouriensis | Not applicable | AB | April 2010 |
| Vascular Plants | ↓ | Buffalograss | Bouteloua dactyloides | Not applicable | SK MB | November 2011 |
| Vascular Plants | ↔ | Bulrush, Long's | Scirpus longii | Not applicable | NS | April 2017 |
| Vascular Plants | ↓ | Daisy, Lakeside | Tetraneuris herbacea | Not applicable | ON | May 2021 |
| Vascular Plants | (no symbol) | Draba, Dense | Draba pycnosperma | Not applicable | QC NL | May 2022 |
| Vascular Plants | (no symbol) | Draba, Puvirnituq Mountain | Draba puvirnituqii | Not applicable | QC | November 2019 |
| Vascular Plants | ↓ | Draba, Yukon | Draba yukonensis | Not applicable | YT | November 2018 |
| Vascular Plants | ↔ | Fern, American Hart's-tongue | Asplenium scolopendrium var. americanum | Not applicable | ON | November 2016 |
| Vascular Plants | (no symbol) | Fern, Broad Beech | Phegopteris hexagonoptera | Not applicable | ON QC | April 1983 |
| Vascular Plants | ↔ | Fern, Coastal Wood | Dryopteris arguta | Not applicable | BC | May 2021 |
| Vascular Plants | ↓ | Gentian, Victorin's | Gentianopsis virgata victorinii | Not applicable | QC | May 2022 |
| Vascular Plants | ↓ | Goldencrest | Lophiola aurea | Not applicable | NS | May 2012 |
| Vascular Plants | (no symbol) | Goldenrod, Houghton's | Solidago houghtonii | Not applicable | ON | May 2005 |
| Vascular Plants | (no symbol) | Goldenrod, Riddell's | Solidago riddellii | Not applicable | MB ON | November 2000 |
| Vascular Plants | ↓ | Goldenseal | Hydrastis canadensis | Not applicable | ON | May 2019 |
| Vascular Plants | (no symbol) | Green Dragon | Arisaema dracontium | Not applicable | ON QC | April 1984 |
| Vascular Plants | ↔ | Hairgrass, Mackenzie | Deschampsia mackenzieana | Not applicable | NT SK | April 2018 |
| Vascular Plants | ↓ | Hoptree, Common | Ptelea trifoliata | Not applicable | ON | November 2015 |
| Vascular Plants | ↔ | Indian-plantain, Tuberous | Arnoglossum plantagineum | Not applicable | ON | May 2002 |
| Vascular Plants | ↓ | Iris, Dwarf Lake | Iris lacustris | Not applicable | ON | November 2010 |
| Vascular Plants | ↔ | Lilaeopsis, Eastern | Lilaeopsis chinensis | Not applicable | NS | May 2004 |
| Vascular Plants | ↓ | Lily, Lyall's Mariposa | Calochortus lyallii | Not applicable | BC | May 2011 |
| Vascular Plants | ↔ | Milk-vetch, Fernald's | Astragalus robbinsii var. fernaldii | Not applicable | QC NL | November 2001 |
| Vascular Plants | ↔ | Oak, Shumard | Quercus shumardii | Not applicable | ON | April 1999 |
| Vascular Plants | ↓ | Pennywort, Water | Hydrocotyle umbellata | Not applicable | NS | May 2014 |
| Vascular Plants | (no symbol) | Pinweed, Beach | Lechea maritima | Not applicable | NB PE | April 2008 |
| Vascular Plants | (no symbol) | Podistera, Yukon | Podistera yukonensis | Not applicable | YT | November 2014 |
| Vascular Plants | ↔ | Pondweed, Hill's | Potamogeton hillii | Not applicable | ON | May 2005 |
| Vascular Plants | ↓ | Prairie-clover, Hairy | Dalea villosa | Not applicable | SK MB | November 2011 |
| Vascular Plants | (no symbol) | Quillwort, Prototype | Isoetes prototypus | Not applicable | NB NS | May 2005 |
| Vascular Plants | ↓ | Redroot | Lachnanthes caroliniana | Not applicable | NS | November 2009 |
| Vascular Plants | ↓ | Rose, Climbing Prairie | Rosa setigera | Not applicable | ON | May 2003 |
| Vascular Plants | ↔ | Rose-mallow, Swamp | Hibiscus moscheutos | Not applicable | ON | November 2004 |
| Vascular Plants | ↓ | Rue-anemone, Eastern False | Enemion biternatum | Not applicable | ON | May 2022 |
| Vascular Plants | ↔ | Rush, New Jersey | Juncus caesariensis | Not applicable | NS | May 2004 |
| Vascular Plants | ↓ | Sand-verbena, Small-flowered | Tripterocalyx micranthus | Not applicable | AB SK | December 2022 |
| Vascular Plants | ↓ | Saxifrage, Spiked | Micranthes spicata | Not applicable | YT | May 2015 |
| Vascular Plants | ↓ | Sedge, Baikal | Carex sabulosa | Not applicable | YT | April 2016 |
| Vascular Plants | ↓ | Sedge, Foothill | Carex tumulicola | Not applicable | BC | December 2022 |
| Vascular Plants | ↓ | Spike-rush, Tubercled | Eleocharis tuberculosa | Not applicable | NS | April 2010 |
| Vascular Plants | ↔ | Tansy, Floccose | Tanacetum huronense var. floccosum | Not applicable | AB SK | April 2018 |
| Vascular Plants | ↓ | Thistle, Pitcher's | Cirsium pitcheri | Not applicable | ON | November 2010 |
| Vascular Plants | ↔ | Thrift, Athabasca | Armeria maritima interior | Not applicable | SK | April 2018 |
| Vascular Plants | ↔ | Water-hemlock, Victorin's | Cicuta maculata var. victorinii | Not applicable | QC | May 2022 |
| Vascular Plants | (no symbol) | Wild Buckwheat, Yukon | Eriogonum flavum var. aquilinum | Not applicable | YT | November 2017 |
| Vascular Plants | ↔ | Willow, Blanket-leaved | Salix silicicola | Not applicable | SK | April 2018 |
| Vascular Plants | ↔ | Willow, Sand-dune Short-capsuled | Salix brachycarpa var. psammophila | Not applicable | SK | April 2018 |
| Vascular Plants | ↔ | Willow, Turnor's | Salix turnorii | Not applicable | SK | April 2018 |
| Vascular Plants | (no symbol) | Woolly-heads, Dwarf | Psilocarphus brevissimus | Prairie population | AB SK | April 2006 |
| Vascular Plants | ↔ | Yarrow, Large-headed Woolly | Achillea millefolium var. megacephala | Not applicable | SK | April 2018 |
| Mosses | ↔ | Cord-moss, Banded | Entosthodon fascicularis | Not applicable | BC | May 2015 |
| Mosses | ↓ | Cord-moss, Rusty | Entosthodon rubiginosus | Not applicable | BC SK | April 2017 |
| Mosses | ↔ | Moss, Columbian Carpet | Bryoerythrophyllum columbianum | Not applicable | BC | November 2014 |
| Mosses | ↔ | Moss, Twisted Oak | Syntrichia laevipila | Not applicable | BC | November 2014 |
| Mosses | (no symbol) | Tassel, Tiny | Crossidium seriatum | Not applicable | BC | November 2014 |
| Lichens | ↓ | Flooded Jellyskin | Leptogium rivulare | Not applicable | MB ON QC | November 2015 |
| Lichens | ↔ | Frosted Glass-whiskers | Sclerophora peronella | Atlantic population | NS | November 2014 |
| Lichens | (no symbol) | Lichen, Blue Felt | Degelia plumbea | Not applicable | NB NS NL | November 2010 |
| Lichens | ↔ | Lichen, Boreal Felt | Erioderma pedicellatum | Boreal population | NL | November 2014 |
| Lichens | (no symbol) | Lichen, Golden-eye | Teloschistes chrysophthalmus | Prairie / Boreal population | MB ON | November 2016 |
| Lichens | ↔ | Lichen, Oldgrowth Specklebelly | Pseudocyphellaria rainierensis | Not applicable | BC | April 2010 |
| Lichens | (no symbol) | Lichen, Peacock Vinyl | Leptogium polycarpum | Not applicable | BC | May 2011 |
| Lichens | (no symbol) | Mountain Crab-eye | Acroscyphus sphaerophoroides | Not applicable | BC | April 2016 |
| Lichens | (no symbol) | Waterfan, Western | Peltigera gowardii | Not applicable | BC | November 2013 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Range of occurrence | Assessment date |
|---|---|---|---|---|---|---|
| Mammals | ↔ | Bear, American Black | Ursus americanus | Not applicable | YT NT NU BC AB SK MB ON QC NB NS NL | April 1999 |
| Mammals | ↔ | Cottontail pinetis subspecies, Nuttall's | Sylvilagus nuttallii pinetis | Not applicable | AB SK | April 1994 |
| Mammals | (no symbol) | Dolphin, Atlantic White-sided | Lagenorhynchus acutus | Not applicable | Atlantic Ocean | April 1991 |
| Mammals | (no symbol) | Dolphin, Bottlenose | Tursiops truncatus | Not applicable | Atlantic Ocean | April 1993 |
| Mammals | (no symbol) | Dolphin, Common | Delphinus delphis | Not applicable | Pacific Ocean Atlantic Ocean | April 1991 |
| Mammals | (no symbol) | Dolphin, Northern Right Whale | Lissodelphis borealis | Not applicable | Pacific Ocean | April 1990 |
| Mammals | (no symbol) | Dolphin, Pacific White-sided | Lagenorhynchus obliquidens | Not applicable | Pacific Ocean | April 1990 |
| Mammals | (no symbol) | Dolphin, Risso's | Grampus griseus | Not applicable | Pacific Ocean Atlantic Ocean | April 1990 |
| Mammals | (no symbol) | Dolphin, Striped | Stenella coeruleoalba | Not applicable | Pacific Ocean Atlantic Ocean | April 1993 |
| Mammals | (no symbol) | Dolphin, White-beaked | Lagenorhynchus albirostris | Not applicable | Atlantic Ocean | April 1998 |
| Mammals | √ | Gopher, Plains Pocket | Geomys bursarius | Not applicable | MB | April 1998 |
| Mammals | ↔ | Lynx, Canada | Lynx canadensis | Not applicable | YT NT NU BC AB SK MB ON QC NB NS NL | May 2001 |
| Mammals | (no symbol) | Porpoise, Dall's | Phocoenoides dalli | Not applicable | Pacific Ocean | April 1989 |
| Mammals | (no symbol) | Sea Lion, California | Zalophus californianus | Not applicable | BC Pacific Ocean | April 1987 |
| Mammals | ☼ | Seal Altantic and Eastern Arctic subspecies, Harbour | Phoca vitulina concolor | Not applicable | NU MB ON QC NB PE NS NL Arctic Ocean Atlantic Ocean | November 2007 |
| Mammals | (no symbol) | Seal Pacific subspecies, Harbour | Phoca vitulina richardsi | Not applicable | BC Pacific Ocean | April 1999 |
| Mammals | (no symbol) | Seal, Grey | Halichoerus grypus | Not applicable | QC NB PE NS NL Atlantic Ocean | April 1999 |
| Mammals | (no symbol) | Seal, Hooded | Cystophora cristata | Not applicable | Arctic Ocean Atlantic Ocean | April 1986 |
| Mammals | (no symbol) | Seal, Northern Elephant | Mirounga angustirostris | Not applicable | BC Pacific Ocean | April 1986 |
| Mammals | √ | Shrew, Gaspé | Sorex gaspensis | Not applicable | QC NB NS | April 2006 |
| Mammals | (no symbol) | Squirrel, Cascade Mantled Ground | Spermophilus saturatus | Not applicable | BC | April 1992 |
| Mammals | (no symbol) | Squirrel, Fox | Sciurus niger | Not applicable | MB ON | April 1979 |
| Mammals | ↻ | Squirrel, Southern Flying | Glaucomys volans | Atlantic (Nova Scotia) population | NS | April 2006 |
| Mammals | ↻ | Squirrel, Southern Flying | Glaucomys volans | Great Lakes Plains population | ON QC | April 2006 |
| Mammals | √ | Weasel, Prairie Long-tailed | Mustela frenata longicauda | Not applicable | AB SK MB | April 1993 |
| Mammals | (no symbol) | Whale North Atlantic subspecies, Common Minke | Balaenoptera acutorostrata acutorostrata | Not applicable | Atlantic Ocean | April 2006 |
| Mammals | (no symbol) | Whale North Pacific subspecies, Common Minke | Balaenoptera acutorostrata scammonii | Not applicable | Pacific Ocean | April 2006 |
| Mammals | (no symbol) | Whale, Baird's Beaked | Berardius bairdii | Not applicable | Pacific Ocean | April 1992 |
| Mammals | ↔ | Whale, Beluga | Delphinapterus leucas | Eastern Beaufort Sea population | NT Arctic Ocean | May 2004 |
| Mammals | ↻ | Whale, Beluga | Delphinapterus leucas | Western Hudson Bay population | NU MB ON QC NL Arctic Ocean Atlantic Ocean | November 2020 |
| Mammals | ↻ | Whale, Beluga | Delphinapterus leucas | James Bay population | NU ON QC | November 2020 |
| Mammals | (no symbol) | Whale, Blainville's Beaked | Mesoplodon densirostris | Not applicable | Atlantic Ocean | April 1989 |
| Mammals | (no symbol) | Whale, Cuvier's Beaked | Ziphius cavirostris | Not applicable | Pacific Ocean Atlantic Ocean | April 1990 |
| Mammals | (no symbol) | Whale, False Killer | Pseudorca crassidens | Not applicable | Pacific Ocean | April 1990 |
| Mammals | ↻ | Whale, Grey | Eschrichtius robustus | Northern Pacific Migratory population | YT NT BC Pacific Ocean Arctic Ocean | November 2017 |
| Mammals | (no symbol) | Whale, Hubbs' Beaked | Mesoplodon carlhubbsi | Not applicable | Pacific Ocean | April 1989 |
| Mammals | √ | Whale, Humpback | Megaptera novaeangliae | Western North Atlantic population | Arctic Ocean Atlantic Ocean | May 2003 |
| Mammals | (no symbol) | Whale, Long-finned Pilot | Globicephala melas | Not applicable | Atlantic Ocean | April 1994 |
| Mammals | (no symbol) | Whale, Pygmy Sperm | Kogia breviceps | Not applicable | Pacific Ocean Atlantic Ocean | April 1994 |
| Mammals | (no symbol) | Whale, Short-finned Pilot | Globicephala macrorhynchus | Not applicable | Pacific Ocean | April 1993 |
| Mammals | (no symbol) | Whale, Sperm | Physeter macrocephalus | Not applicable | Pacific Ocean Atlantic Ocean | April 1996 |
| Mammals | (no symbol) | Whale, Stejneger's Beaked | Mesoplodon stejneri | Not applicable | Pacific Ocean | April 1989 |
| Mammals | (no symbol) | Whale, True's Beaked | Mesoplodon mirus | Not applicable | Atlantic Ocean | April 1989 |
| Mammals | (no symbol) | Wolf, Northern Grey | Canis lupus occidentalis | Not applicable | YT NT NU BC AB SK MB ON QC NL | April 1999 |
| Mammals | (no symbol) | Wolf, Southern Grey | Canis lupus nubilus | Not applicable | BC | April 1999 |
| Birds | √ | Bluebird, Eastern | Sialia sialis | Not applicable | AB SK MB ON QC NB PE NS | April 1996 |
| Birds | ↔ | Chat auricollis subspecies, Yellow-breasted | Icteria virens auricollis | Prairie population | AB SK | November 2011 |
| Birds | (no symbol) | Coot, American | Fulica americana | Not applicable | YT NT NU BC AB SK MB ON QC NB NS | April 1991 |
| Birds | (no symbol) | Cormorant, Double-crested | Phalacrocorax auritus | Not applicable | YT NT BC AB SK MB ON QC NB PE NS NL | April 1978 |
| Birds | (no symbol) | Crane tabida subspecies, Sandhill | Grus canadensis tabida | Not applicable | BC MB ON | April 1979 |
| Birds | (no symbol) | Eagle, Bald | Haliaeetus leucocephalus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1984 |
| Birds | ↔ | Eagle, Golden | Aquila chrysaetos | Not applicable | YT NT NU BC AB SK MB ON QC NL | April 1996 |
| Birds | √ | Falcon anatum/tundrius, Peregrine | Falco peregrinus anatum/tundrius | Not applicable | YT NT NU BC AB SK MB ON QC NB NS NL | November 2017 |
| Birds | ↔ | Falcon, Prairie | Falco mexicanus | Not applicable | BC AB SK | April 1996 |
| Birds | (no symbol) | Flycatcher, Grey | Empidonax wrightii | Not applicable | BC | April 1992 |
| Birds | (no symbol) | Goshawk atricapillus subspecies, Northern | Accipiter gentilis atricapillus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1995 |
| Birds | (no symbol) | Grebe, Red-necked | Podiceps grisegena | Not applicable | YT NT NU BC AB SK MB ON QC NS NL | April 1982 |
| Birds | ↔ | Gyrfalcon | Falco rusticolus | Not applicable | YT NT NU BC AB SK ON QC PE NS NL | April 1987 |
| Birds | (no symbol) | Harrier, Northern | Circus cyaneus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1993 |
| Birds | √ | Hawk, Cooper's | Accipiter cooperii | Not applicable | BC AB SK MB ON QC NB NS | April 1996 |
| Birds | √ | Hawk, Red-shouldered | Buteo lineatus | Not applicable | ON QC NB | April 2006 |
| Birds | (no symbol) | Hawk, Red-tailed | Buteo jamaicensis | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1995 |
| Birds | (no symbol) | Hawk, Rough-legged | Buteo lagopus | Not applicable | YT NT NU BC MB ON QC NL | April 1995 |
| Birds | ↔ | Hawk, Sharp-shinned | Accipiter striatus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1997 |
| Birds | √ | Knot islandica subspecies, Red | Calidris canutus islandica | Not applicable | NT NU | November 2020 |
| Birds | (no symbol) | Loon, Common | Gavia immer | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1997 |
| Birds | (no symbol) | Loon, Yellow-billed | Gavia adamsii | Not applicable | YT NT NU BC AB MB QC | April 1997 |
| Birds | (no symbol) | Merlin | Falco columbarius | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1985 |
| Birds | (no symbol) | Owl, Boreal | Aegolius funereus | Not applicable | YT NT NU BC AB SK MB ON QC NB PE NS NL | April 1995 |
| Birds | √ | Owl, Great Grey | Strix nebulosa | Not applicable | YT NT BC AB SK MB ON QC | April 1996 |
| Birds | (no symbol) | Owl, Northern Hawk | Surnia ulula | Not applicable | YT NT BC AB SK MB ON QC NB NL | April 1992 |
| Birds | (no symbol) | Owl, Snowy | Bubo scandiaca | Not applicable | YT NT NU MB QC NL | April 1995 |
| Birds | √ | Pelican, American White | Pelecanus erythrorhynchos | Not applicable | BC AB SK MB ON | April 1987 |
| Birds | (no symbol) | Screech-owl, Eastern | Megascops asio | Not applicable | SK MB ON QC NB | April 1986 |
| Birds | (no symbol) | Sparrow, Nelson's Sharp-tailed | Ammodramus nelsoni | Not applicable | BC AB SK MB ON QC NB PE NS | April 1998 |
| Birds | √ | Swan, Trumpeter | Cygnus buccinator | Not applicable | YT NT BC AB SK ON | April 1996 |
| Birds | ↔ | Tern, Black | Chlidonias niger | Not applicable | NT BC AB SK MB ON QC NB NS | April 1996 |
| Birds | √ | Tern, Caspian | Sterna caspia | Not applicable | NT BC AB SK MB ON QC NL | April 1999 |
| Birds | (no symbol) | Tern, Common | Sterna hirundo | Not applicable | NT AB SK MB ON QC NB PE NS NL | April 1998 |
| Birds | √ | Warbler, Hooded | Setophaga citrina | Not applicable | ON | May 2012 |
| Birds | √ | Warbler, Prairie | Setophaga discolor | Not applicable | ON | April 1999 |
| Birds | (no symbol) | Wren, Canyon | Catherpes mexicanus | Not applicable | BC | April 1992 |
| Birds | (no symbol) | Wren, Sedge | Cistothorus platensis | Not applicable | AB SK MB ON QC NB | April 1993 |
| Reptiles | (no symbol) | Brownsnake, DeKay's | Storeria dekayi | Not applicable | ON QC | May 2002 |
| Reptiles | (no symbol) | Gartersnake, Northwestern | Thamnophis ordinoides | Not applicable | BC | May 2003 |
| Reptiles | (no symbol) | Lizard, Northern Alligator | Elgaria coerulea | Not applicable | BC | May 2002 |
| Reptiles | ↔ | Turtle, Western Painted | Chrysemys picta bellii | Prairie / Western Boreal - Canadian Shield population | AB SK MB ON | November 2016 |
| Reptiles | (no symbol) | Watersnake, Northern | Nerodia sipedon sipedon | Not applicable | ON QC | May 2002 |
| Amphibians | (no symbol) | Ambystoma, Unisexual | Ambystoma (2) laterale - jeffersonianum | Blue-spotted Salamander dependent population | ON QC NB NS | April 2016 |
| Amphibians | (no symbol) | Ensatina | Ensatina eschscholtzii | Not applicable | BC | April 1999 |
| Amphibians | (no symbol) | Frog, Columbia Spotted | Rana luteiventris | Not applicable | YT BC AB | May 2000 |
| Amphibians | ↔ | Frog, Northern Leopard | Lithobates pipiens | Eastern populations | MB ON QC NB PE NS NL | April 2009 |
| Amphibians | (no symbol) | Frog, Pickerel | Rana palustris | Not applicable | ON QC NB NS | April 1999 |
| Amphibians | ↻ | Frog, Western Chorus | Pseudacris triseriata | Carolinian population | ON | April 2008 |
| Amphibians | (no symbol) | Mudpuppy | Necturus maculosus | Not applicable | MB ON QC | May 2000 |
| Amphibians | (no symbol) | Salamander, Four-toed | Hemidactylium scutatum | Not applicable | ON QC NB NS | April 1999 |
| Amphibians | (no symbol) | Salamander, Long-toed | Ambystoma macrodactylum | Not applicable | BC AB | April 2006 |
| Amphibians | ↻ | Salamander, Northern Dusky | Desmognathus fuscus | Quebec / New Brunswick population | QC NB | May 2012 |
| Amphibians | (no symbol) | Salamander, Northwestern | Ambystoma gracile | Not applicable | BC | April 1999 |
| Amphibians | (no symbol) | Salamander, Western Red-backed | Plethodon vehiculum | Not applicable | BC | November 2001 |
| Amphibians | (no symbol) | Spadefoot, Plains | Spea bombifrons | Not applicable | AB SK MB | May 2003 |
| Amphibians | (no symbol) | Toad, Canadian | Bufo hemiophrys | Not applicable | NT AB SK MB | May 2003 |
| Amphibians | (no symbol) | Treefrog, Cope's Grey | Hyla chrysoscelis | Not applicable | MB | April 1999 |
| Fishes | (no symbol) | Bloater | Coregonus hoyi | Not applicable | ON | April 1988 |
| Fishes | ↻ | Buffalo, Bigmouth | Ictiobus cyprinellus | Great Lakes - Upper St. Lawrence populations | ON | April 2008 |
| Fishes | ☼ | Chiselmouth | Acrocheilus alutaceus | Not applicable | BC | May 2003 |
| Fishes | (no symbol) | Chub, Hornyhead | Nocomis biguttatus | Not applicable | MB ON | April 1988 |
| Fishes | (no symbol) | Chub, River | Nocomis micropogon | Not applicable | ON | April 1988 |
| Fishes | ↻ | Chub, Silver | Macrhybopsis storeriana | Saskatchewan - Nelson River populations | MB | May 2012 |
| Fishes | (no symbol) | Dace, Leopard | Rhinichthys falcatus | Not applicable | BC | April 1990 |
| Fishes | √ | Darter, Greenside | Etheostoma blennioides | Not applicable | ON | November 2006 |
| Fishes | (no symbol) | Darter, Least | Etheostoma microperca | Not applicable | ON | April 1989 |
| Fishes | ↻ | Darter, River | Percina shumardi | Southern Hudson Bay - James Bay populations | MB ON | April 2016 |
| Fishes | ↻ | Darter, River | Percina shumardi | Saskatchewan - Nelson River populations | SK MB ON | April 2016 |
| Fishes | (no symbol) | Darter, Tessellated | Etheostoma olmstedi | Not applicable | ON QC | April 1993 |
| Fishes | √ | Grenadier, Roughhead | Macrourus berglax | Not applicable | NU NB NS NL Arctic Ocean Atlantic Ocean | November 2018 |
| Fishes | (no symbol) | Halibut, Atlantic | Hippoglossus hippoglossus | Not applicable | Atlantic Ocean | November 2011 |
| Fishes | (no symbol) | Herring, Blueback | Alosa aestivalis | Not applicable | NB NS Atlantic Ocean | April 1980 |
| Fishes | (no symbol) | Killifish, Banded | Fundulus diaphanus | Mainland populations | MB ON QC NB PE NS NL | April 1989 |
| Fishes | √ | Madtom, Brindled | Noturus miurus | Not applicable | ON | May 2001 |
| Fishes | (no symbol) | Minnow, Bluntnose | Pimephales notatus | Not applicable | MB ON QC | April 1998 |
| Fishes | (no symbol) | Minnow, Eastern Silvery | Hybognathus regius | Not applicable | ON QC | April 1997 |
| Fishes | (no symbol) | Pickerel, Chain | Esox niger | Not applicable | QC NB NS | April 1997 |
| Fishes | (no symbol) | Pickerel, Redfin | Esox americanus americanus | Not applicable | QC | April 1998 |
| Fishes | (no symbol) | Redhorse, Golden | Moxostoma erythrurum | Not applicable | MB ON | April 1989 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Southwest Newfoundland population | QC NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Labrador population | QC NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Northeast Newfoundland population | NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Northwest Newfoundland population | NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | South Thompson, Ocean, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | East Vancouver Island, Ocean, Fall (EVI + SFj) population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Chilko-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Nadina-Francois-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Shuswap Complex-L population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Pitt-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Chilliwack-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Chilko-S population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Shuswap-ES population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Harrison River (River-Type) population | BC Pacific Ocean | November 2017 |
| Fishes | (no symbol) | Salmon, Sockeye | Oncorhynchus nerka | Anderson-Seton-ES population | BC Pacific Ocean | November 2017 |
| Fishes | √ | Sardine, Pacific | Sardinops sagax | Not applicable | Pacific Ocean | May 2002 |
| Fishes | ↻ | Sculpin, Deepwater | Myoxocephalus thompsonii | Western Arctic populations | NT AB SK | April 2017 |
| Fishes | ↻ | Sculpin, Deepwater | Myoxocephalus thompsonii | Western Hudson Bay populations | SK | April 2017 |
| Fishes | ↻ | Sculpin, Deepwater | Myoxocephalus thompsonii | Saskatchewan - Nelson River populations | MB ON | April 2017 |
| Fishes | (no symbol) | Sculpin, Fourhorn | Myoxocephalus quadricornis | Salt water form | Pacific Ocean Arctic Ocean Atlantic Ocean | April 1989 |
| Fishes | (no symbol) | Sculpin, Spoonhead | Cottus ricei | Not applicable | YT NT BC AB SK MB ON QC | April 1989 |
| Fishes | √ | Shark, Blue | Prionace glauca | North Atlantic population | QC NB PE NS NL Atlantic Ocean | November 2016 |
| Fishes | ☼ | Shark, Blue | Prionace glauca | North Pacific population | BC Pacific Ocean | November 2016 |
| Fishes | √ | Shiner, Bigmouth | Notropis dorsalis | Not applicable | MB | November 2003 |
| Fishes | (no symbol) | Shiner, Blackchin | Notropis heterodon | Not applicable | MB ON QC | April 1994 |
| Fishes | (no symbol) | Shiner, Ghost | Notropis buchanani | Not applicable | ON | April 1993 |
| Fishes | (no symbol) | Shiner, Redfin | Lythrurus umbratilis | Not applicable | ON | April 1988 |
| Fishes | (no symbol) | Shiner, Rosyface | Notropis rubellus | Not applicable | ON QC | April 1994 |
| Fishes | (no symbol) | Shiner, Striped | Luxilus chrysocephalus | Not applicable | ON | April 1993 |
| Fishes | (no symbol) | Shiner, Weed | Notropis texanus | Not applicable | MB | April 1999 |
| Fishes | (no symbol) | Silverside, Brook | Labidesthes sicculus | Not applicable | ON QC | April 1989 |
| Fishes | (no symbol) | Skate, Barndoor | Dipturus laevis | Not applicable | Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Skate, Big | Raja binoculata | Not applicable | Pacific Ocean | April 2007 |
| Fishes | (no symbol) | Skate, Longnose | Raja rhina | Not applicable | Pacific Ocean | April 2007 |
| Fishes | (no symbol) | Skate, Sandpaper | Bathyraja interrupta | Not applicable | Pacific Ocean | April 2007 |
| Fishes | √ | Skate, Winter | Leucoraja ocellata | Western Scotian Shelf - Georges Bank population | Atlantic Ocean | May 2015 |
| Fishes | √ | Stoneroller, Central | Campostoma anomalum | Not applicable | ON | April 1998 |
| Fishes | (no symbol) | Sunfish, Green | Lepomis cyanellus | Not applicable | ON | April 1987 |
| Fishes | ↻ | Sunfish, Northern | Lepomis peltastes | Saskatchewan - Nelson River populations | ON | April 2016 |
| Fishes | (no symbol) | Trout, Bull | Salvelinus confluentus | Pacific populations | BC | November 2012 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Pacific populations | YT BC | November 2016 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Western Arctic populations | NT BC AB | November 2016 |
| Fishes | (no symbol) | Wolf-eel | Anarrhichthys ocellatus | Not applicable | Pacific Ocean | May 2003 |
| Fishes | (no symbol) | Y-Prickleback | Allolumpenus hypochromus | Not applicable | Pacific Ocean | April 1991 |
| Arthropods | √ | Skipper, Sonora | Polites sonora | Not applicable | BC | November 2016 |
| Arthropods | (no symbol) | Spider, Northwestern Cellar | Psilochorus hesperus | Not applicable | BC | May 2014 |
| Molluscs | (no symbol) | Capshell, Rocky Mountain | Acroloxus coloradensis | Western population | BC AB | November 2001 |
| Molluscs | (no symbol) | Crater, Spike-lip | Appalachina sayana | Not applicable | ON QC NB NS | November 2003 |
| Molluscs | (no symbol) | Tigersnail, Western Banded | Anguispira kochi occidentalis | Not applicable | BC | April 2017 |
| Vascular Plants | √ | Aster, Annual Saltmarsh | Symphyotrichum subulatum | Not applicable | QC NB PE | April 2017 |
| Vascular Plants | (no symbol) | Aster, Short's | Symphyotrichum shortii | Not applicable | ON | April 1999 |
| Vascular Plants | (no symbol) | Aster, Yukon | Symphyotrichum yukonense | Not applicable | YT NT | April 1996 |
| Vascular Plants | (no symbol) | Brickellia, Large-flowered | Brickellia grandiflora | Not applicable | BC AB | April 1996 |
| Vascular Plants | √ | Corydalis, Scouler's | Corydalis scouleri | Not applicable | BC | November 2006 |
| Vascular Plants | (no symbol) | Fameflower | Talinum sediforme | Not applicable | BC | April 1990 |
| Vascular Plants | (no symbol) | Fleabane, Dwarf | Erigeron radicatus | Not applicable | AB SK | April 1996 |
| Vascular Plants | (no symbol) | Goldenweed, Northern Mock | Stenotus borealis | Not applicable | YT | April 1997 |
| Vascular Plants | (no symbol) | Greenbrier, Round-leaved | Smilax rotundifolia | Atlantic population | NS | November 2007 |
| Vascular Plants | √ | Helleborine, Giant | Epipactis gigantea | Not applicable | BC | November 2015 |
| Vascular Plants | (no symbol) | Mermaid, False | Floerkea proserpinacoides | Not applicable | ON QC NS | April 1984 |
| Vascular Plants | (no symbol) | Phlox, Blue | Phlox alyssifolia | Not applicable | AB SK | April 1996 |
| Vascular Plants | (no symbol) | Pink, Rush | Stephanomeria runcinata | Not applicable | AB SK | April 1996 |
| Vascular Plants | (no symbol) | Pipewort, Parker's | Eriocaulon parkeri | Not applicable | QC NB | April 2007 |
| Vascular Plants | (no symbol) | Rhododendron, Pacific | Rhododendron macrophyllum | Not applicable | BC | April 1997 |
| Vascular Plants | (no symbol) | Sagebrush, Wood's | Artemisia rupestris woodii | Not applicable | YT | April 1997 |
| Vascular Plants | (no symbol) | Sedge, Nebraska | Carex nebrascensis | Not applicable | AB | April 1995 |
| Vascular Plants | (no symbol) | Stickseed, Okanogan | Hackelia ciliata | Not applicable | BC | November 2007 |
| Vascular Plants | (no symbol) | Stitchwort, Sand | Stellaria arenicola | Not applicable | AB SK | April 1992 |
| Vascular Plants | (no symbol) | Stitchwort, Serpentine | Minuartia marcescens | Not applicable | QC NL | April 2006 |
| Vascular Plants | (no symbol) | Wallflower, Narrow-leaved | Erysimum angustatum | Not applicable | YT | April 1993 |
| Vascular Plants | √ | Willow, Tyrrell's | Salix tyrrellii | Not applicable | NT NU SK | April 1999 |
| Vascular Plants | (no symbol) | Woolly-heads, Slender | Psilocarphus tenellus var. tenellus | Not applicable | BC | April 1996 |
| Mosses | (no symbol) | Moss, Delicate Luster | Isopterygium tenerum | Not applicable | NS | April 2006 |
| Mosses | (no symbol) | Moss, Porter's Twisted | Tortula porteri | Not applicable | ON | April 2016 |
| Mosses | √ | Moss, Pygmy Pocket | Fissidens exilis | Not applicable | BC ON QC NS | April 2016 |
| Lichens | √ | Lichen, Ghost Antler | Pseudevernia cladonia | Not applicable | QC NB NS | November 2011 |
| Lichens | √ | Lichen, Seaside Bone | Hypogymnia heterophylla | Not applicable | BC | May 2022 |
| Taxon | Assessment details | Common name | Scientific name | Population name | Range of occurrence | Assessment date |
|---|---|---|---|---|---|---|
| Mammals | ☼ | Bat, Fringed | Myotis thysanodes | Not applicable | BC | May 2004 |
| Mammals | ☼ | Bat, Keen's Long-eared | Myotis keenii | Not applicable | BC | November 2003 |
| Mammals | ☼ | Cougar | Puma concolor couguar | Eastern population | ON QC NB NS | April 1998 |
| Mammals | ☼ | Seal, Bearded | Erignathus barbatus | Not applicable | NT NU MB ON NL Arctic Ocean Atlantic Ocean | April 2007 |
| Mammals | (no symbol) | Vole, Sagebrush | Lemmiscus curtatus | Not applicable | AB SK | April 1996 |
| Mammals | (no symbol) | Whale, Dwarf Sperm | Kogia simus | Not applicable | Pacific Ocean | April 1997 |
| Mammals | (no symbol) | Wolf, Arctic Grey | Canis lupus arctos | Not applicable | NT NU | April 1999 |
| Birds | (no symbol) | Poorwill, Common | Phalaenoptilus nuttallii | Not applicable | BC AB SK | April 1993 |
| Birds | (no symbol) | Tern, Forster's | Sterna forsteri | Not applicable | BC AB SK MB ON | April 1996 |
| Amphibians | ☼ | Salamander, Spring | Gyrinophilus porphyriticus | Carolinian population | ON | April 2018 |
| Fishes | ☼ | Buffalo, Black | Ictiobus niger | Not applicable | ON | April 2007 |
| Fishes | ↔ | Catfish, Flathead | Pylodictis olivaris | Not applicable | ON | April 2008 |
| Fishes | ☼ | Cisco, Blackfin | Coregonus nigripinnis | Not applicable | ON | April 2007 |
| Fishes | ↻ | Cod, Atlantic | Gadus morhua | Arctic Marine population | Atlantic Ocean | April 2010 |
| Fishes | ↔ | Lamprey, Alaskan Brook | Lethenteron alaskense | Not applicable | NT | April 2006 |
| Fishes | ↻ | Lamprey, Chestnut | Ichthyomyzon castaneus | Saskatchewan - Nelson River populations | SK MB ON | November 2010 |
| Fishes | ↻ | Lamprey, Chestnut | Ichthyomyzon castaneus | Great Lakes - Upper St. Lawrence populations | ON QC | November 2010 |
| Fishes | (no symbol) | Lamprey, Silver | Ichthyomyzon unicuspis | Southern Hudson Bay - James Bay populations | MB | November 2020 |
| Fishes | ☼ | Madtom, Margined | Noturus insignis | Not applicable | ON QC | May 2002 |
| Fishes | (no symbol) | Plaice, American | Hippoglossoides platessoides | Arctic population | Arctic Ocean | April 2009 |
| Fishes | ☼ | Prickleback, Blackline | Acantholumpenus mackayi | Not applicable | Arctic Ocean | May 2003 |
| Fishes | (no symbol) | Salmon, Atlantic | Salmo salar | Nunavik population | QC NL Atlantic Ocean | November 2010 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | South Coast - Southern Fjords, Ocean, Fall population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | South Coast - Georgia Strait, Ocean, Fall population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Southern Mainland, Ocean, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | West Vancouver Island, Ocean, Fall (WVI + WQCI) population | BC Pacific Ocean | November 2020 |
| Fishes | (no symbol) | Salmon, Chinook | Oncorhynchus tshawytscha | Southern Mainland, Stream, Summer population | BC Pacific Ocean | November 2018 |
| Fishes | ↻ | Sculpin, Deepwater | Myoxocephalus thompsonii | Southern Hudson Bay - James Bay populations | ON | April 2017 |
| Fishes | ☼ | Sculpin, Fourhorn | Myoxocephalus quadricornis | Freshwater form | NT NU NL | November 2003 |
| Fishes | (no symbol) | Sculpin, Spinynose | Asemichthys taylori | Not applicable | Pacific Ocean | April 1997 |
| Fishes | (no symbol) | Shark, Brown Cat | Apristurus brunneus | Not applicable | Pacific Ocean | April 2007 |
| Fishes | (no symbol) | Shark, White | Carcharodon carcharias | Pacific population | Pacific Ocean | April 2006 |
| Fishes | (no symbol) | Skate, Smooth | Malacoraja senta | Nose of the Grand Bank population | NL Atlantic Ocean | May 2012 |
| Fishes | (no symbol) | Skate, Smooth | Malacoraja senta | Hopedale Channel population | NL Atlantic Ocean | May 2012 |
| Fishes | (no symbol) | Smelt, Longfin | Spirinchus thaleichthys | Pygmy populations | BC | November 2004 |
| Fishes | ☼ | Sunfish, Redbreast | Lepomis auritus | Not applicable | NB | April 2008 |
| Fishes | (no symbol) | Trout, Bull | Salvelinus confluentus | Upper Yukon Watershed populations | YT BC | November 2012 |
| Fishes | ☼ | Whitefish, Lake | Coregonus clupeaformis | Lake Simcoe population | ON | May 2005 |
| Fishes | ↔ | Whitefish, Lake | Coregonus clupeaformis | Mira River population | NS | November 2000 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Yukon River populations | YT | November 2016 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Southwestern Yukon Beringian populations | YT BC | November 2016 |
| Fishes | (no symbol) | Whitefish, Pygmy | Prosopium coulterii | Saskatchewan - Nelson Rivers populations | ON | November 2016 |
| Fishes | ☼ | Wolffish, Bering | Anarhichas orientalis | Not applicable | Arctic Ocean | November 2002 |
| Arthropods | ☼ | Borer, Aweme | Papaipema aweme | Not applicable | SK MB ON | November 2020 |
| Arthropods | (no symbol) | Flower Gem, Dark-banded | Melaporphyria immortua | Not applicable | AB SK MB | May 2005 |
| Arthropods | (no symbol) | Moth, Columbia Dune | Copablepharon absidum | Not applicable | BC | April 2017 |
| Molluscs | (no symbol) | Capshell, Rocky Mountain | Acroloxus coloradensis | Eastern population | ON QC | November 2001 |
| Molluscs | (no symbol) | Duskysnail, Squat | Lyogyrus granum | Not applicable | NB NS | November 2003 |
| Molluscs | (no symbol) | Fieldslug, Evening | Deroceras hesperium | Not applicable | BC | November 2003 |
| Molluscs | ☼ | Physa, Lake Winnipeg | Physa sp. | Not applicable | MB | November 2012 |
| Molluscs | (no symbol) | Snail, Gatineau Tadpole | Physella parkeri latchfordi | Not applicable | QC | April 1997 |
| Vascular Plants | (no symbol) | Barley, Little | Hordeum pusillum | Not applicable | AB | April 1993 |
| Vascular Plants | (no symbol) | Fleabane, Leiberg's | Erigeron leibergii | Not applicable | BC | November 2016 |
| Vascular Plants | ☼ | Fleabane, Provancher's | Erigeron philadelphicus var. provancheri | Not applicable | ON QC | May 2023 |
| Vascular Plants | (no symbol) | Goldenweed, Rabbit-brush | Ericameria bloomeri | Not applicable | BC | April 1997 |
| Vascular Plants | (no symbol) | Pinweed, Impoverished | Lechea intermedia var. depauperata | Not applicable | SK | April 1997 |
| Vascular Plants | (no symbol) | Whitlow-grass, Long-stalked | Draba juvenilis | Not applicable | AB | April 1992 |
| Mosses | (no symbol) | Moss, Schleicher's Silk | Entodon schleicheri | Not applicable | NT BC AB | May 2005 |
| Lichens | ↔ | Frosted Glass-whiskers | Sclerophora peronella | Pacific population | BC | November 2014 |
| Lichens | (no symbol) | Lichen, Flexuous Golden Stubble | Chaenotheca servitii | Not applicable | NS | November 2002 |
| Lichens | (no symbol) | Lichen, Red Oak Stubble | Phaeocalicium minutissimum | Not applicable | QC NB | November 2002 |
Record of reviews of classification
A short history is provided for each wildlife species that has been reassessed by COSEWIC, including date(s) of assessment and the status assigned.
- Acadian Flycatcher
- Designated Endangered in April 1994. Status re-examined and confirmed in November 2000 and April 2010.
- Alaskan Brook Lamprey
- Species considered in April 1990 and in April 2006 and placed in the Data Deficient category.
- Allegheny Mountain Dusky Salamander (Appalachian population)
- The species was considered a single unit and designated Special Concern in April 1998. Status re-examined and designated Threatened in November 2001. Split into two populations in April 2007. The Great Lakes / St. Lawrence population was designated Threatened in April 2007. Population name changed to Appalachian population in April 2018; status re-examined and designated Endangered.
- Allegheny Mountain Dusky Salamander (Carolinian population)
- The species was considered a single unit and designated Special Concern in April 1998 . Split into two populations in April 2007. The Carolinian population was designated Endangered in April 2007. Status re-examined and confirmed in April 2018.
- Allegheny Mountain Dusky Salamander
- The species was considered a single unit and designated Special Concern in April 1998. Status re-examined and designated Threatened in November 2001. Split into two populations in April 2007. The original designation was de-activated.
- American Badger
- Designated Not at Risk in April 1979. The original Canada-wide designation was de-activated in May 2000 when the American Badger was split according to subspecies.
- American Badger jacksoni subspecies
- The species was considered a single unit and designated Not at Risk in 1979. Each subspecies was given a separate designation in May 2000. The jacksoni subspecies was designated Endangered. Status re-examined and confirmed in November 2012.
- American Badger jeffersonii subspecies (Eastern population)
- The species was considered a single unit and designated Not at Risk in 1979. Each subspecies was given a separate designation in May 2000; the jeffersonii subspecies was designated Endangered. In November 2012, the jeffersonii subspecies was further split into two populations (Western and Eastern populations), and the Eastern population was designated Endangered.
- American Badger jeffersonii subspecies (Western population)
- The species was considered a single unit and designated Not at Risk in 1979. Each subspecies was given a separate designation in May 2000; the jeffersonii subspecies was designated Endangered. In November 2012, the jeffersonii subspecies was further split into two populations (Western and Eastern populations), and the Western population was designated Endangered.
- American Badger jeffersonii subspecies
- The species was considered a single unit and designated Not at Risk in 1979. Each subspecies was given a separate designation in May 2000; the jeffersonii subspecies was designated Endangered. The jeffersonii subspecies was further split into two populations (Western and Eastern populations) in November 2012. The original designation was de-activated.
- American Badger taxus subspecies
- The species was considered a single unit and designated Not at Risk in 1979. Each subspecies was given a separate designation in May 2000; the taxus subspecies was designated Not at Risk. Status re-examined and designated Special Concern in November 2012.
- American Black Bear
- Designated Not at Risk in April 1998 and in April 1999.
- American Burying Beetle
- Designated Extirpated in November 2011. Status re-examined and confirmed in December 2022.
- American Chestnut
- Designated Threatened in April 1987. Status re-examined and designated Endangered in November 2004.
- American Columbo
- Designated Special Concern in April 1993. Status re-examined and designated Endangered in April 2006.
- American Eel
- Designated Special Concern in April 2006. Status re-examined and designated Threatened in May 2012.
- American Ginseng
- Designated Threatened in April 1988. Status re-examined and designated Endangered in April 1999. Status re-examined and confirmed in May 2000.
- American Hart's-tongue Fern
- Designated Special Concern in November 2000 and in November 2016.
- American Marten (Newfoundland population)
- Designated Not at Risk in April 1979. Status re-examined and designated Threatened in April 1986. Status re-examined and designated Endangered in April 1996 and in May 2000. Status re-examined and designated Threatened in April 2007. Status re-examined and designated Special Concern in May 2022.
- American Water-willow
- Designated Threatened in April 1984. Status re-examined and confirmed in May 2000 and May 2021.
- American White Pelican
- Designated Threatened in April 1978. Status re-examined and designated Not at Risk in April 1987.
- Ancient Murrelet
- Designated Special Concern in April 1993. Status re-examined and confirmed in November 2004 and November 2014.
- Annual Saltmarsh Aster
- Designated Special Concern in April 1992. Status re-examined and designated Not at Risk in April 2017.
- Anticosti Aster
- Designated Threatened in April 1990. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in April 2017.
- Athabasca Thrift
- Designated Threatened in April 1981. Status re-examined and designated Special Concern in April 1999. Status re-examined and confirmed in May 2002 and April 2018.
- Atlantic Cod (Arctic Lakes population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Arctic population was designated Special Concern. When the Arctic population was further split into two populations (Arctic Lakes population and Arctic Marine population) in April 2010, the Arctic Lakes population was designated Special Concern, and the original Arctic population was de-activated.
- Atlantic Cod (Arctic Marine population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Arctic population was designated Special Concern. When the Arctic population was further split into two populations (Arctic Lakes population and Arctic Marine population) in April 2010, the Arctic Marine population was designated Data Deficient, and the original Arctic population was de-activated.
- Atlantic Cod (Arctic population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Arctic population was designated Special Concern. Further split into two populations (Arctic Lakes population and Arctic Marine population) in April 2010. The original Arctic population was de-activated.
- Atlantic Cod (Laurentian North population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Laurentian North population was designated Threatened. Status re-examined and designated Endangered in April 2010.
- Atlantic Cod (Laurentian South population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Maritimes population was designated Special Concern. When the Maritimes population was further split into two populations (Laurentian South population and Southern population) in April 2010, the Laurentian South population was designated Endangered, and the original Maritimes population was de-activated.
- Atlantic Cod (Maritimes population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Maritimes population was designated Special Concern. Further split into two populations (Laurentian South population and Southern population) in April 2010. The original Maritimes population was de-activated.
- Atlantic Cod (Newfoundland and Labrador population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Newfoundland and Labrador population was designated Endangered. Status re-examined and confirmed in April 2010.
- Atlantic Cod (Southern population)
- The species was considered a single unit and designated Special Concern in April 1998. When the species was split into separate populations in May 2003, the Maritimes population was designated Special Concern. When the Maritimes population was further split into two populations (Laurentian South population and Southern population) in April 2010, the Southern population was designated Endangered, and the original Maritimes population was de-activated.
- Atlantic Cod
- Designated Special Concern in April 1998. Split into four populations in May 2003. The original designation was de-activated.
- Atlantic Mud-piddock
- Designated Threatened in November 2009. Status re-examined and confirmed in May 2021.
- Atlantic Salmon (Inner Bay of Fundy population)
- Designated Endangered in May 2001. Status re-examined and confirmed in April 2006 and November 2010.
- Atlantic Salmon (Lake Ontario population)
- Last reported in 1898. Designated Extirpated in April 2006. Status re-examined and designated Extinct in November 2010.
- Atlantic Walrus (Central / Low Arctic population)
- The Atlantic Walrus in Canada was originally treated by COSEWIC as two separate populations: Eastern Arctic population (Not at Risk in April 1987 and May 2000) and Northwest Atlantic population (Extirpated in April 1987 and May 2000). In April 2006, COSEWIC included both populations in a single designatable unit for Atlantic Walrus in Canada, and the species was designated Special Concern. Split into three populations in April 2017. The Central / Low Arctic population was designated Special Concern in April 2017.
- Atlantic Walrus (Eastern Arctic population)
- The Eastern Arctic population was designated Not at Risk in April 1987 and in May 2000. In April 2006, COSEWIC included the Eastern Arctic portion of the Atlantic Walrus as part of a single designatable unit for Atlantic Walrus in Canada. The original designation was de-activated.
- Atlantic Walrus (High Arctic population)
- The Atlantic Walrus in Canada was originally treated by COSEWIC as two separate populations: Eastern Arctic population (Not at Risk in April 1987 and May 2000) and Northwest Atlantic population (Extirpated in April 1987 and May 2000). In April 2006, COSEWIC included both populations in a single designatable unit for Atlantic Walrus in Canada, and the species was designated Special Concern. Split into three populations in April 2017. The High Arctic population was designated Special Concern in April 2017.
- Atlantic Walrus (Northwest Atlantic population)
- The Atlantic Walrus in Canada was originally treated by COSEWIC as two separate populations: Eastern Arctic population (Not at Risk in April 1987 and May 2000) and Northwest Atlantic population (Extirpated in April 1987 and May 2000). In April 2006, COSEWIC included the extirpated portion of the Atlantic Walrus as part of a single designatable unit for Atlantic Walrus in Canada. The original designation was de-activated.
- Atlantic Walrus (Nova Scotia - Newfoundland - Gulf of St Lawrence population)
- The Atlantic Walrus in Canada was originally treated by COSEWIC as two separate populations: Eastern Arctic population (Not at Risk in April 1987 and May 2000) and Northwest Atlantic population (Extirpated in April 1987 and May 2000). In April 2006, COSEWIC included both populations in a single designatable unit for Atlantic Walrus in Canada, and the species was designated Special Concern. Split into three populations in April 2017. The Nova Scotia - Newfoundland - Gulf of St Lawrence population was designated Extinct in April 2017.
- Atlantic Walrus
- The Atlantic Walrus in Canada was originally treated by COSEWIC as two separate populations: Eastern Arctic population (Not at Risk in April 1987 and May 2000) and Northwest Atlantic population(Extirpated in April 1987 and May 2000). In April 2006, COSEWIC included both populations in a single designatable unit for Atlantic Walrus in Canada, and the species was designated Special Concern. Split into three populations in April 2017. The original designation was de-activated.
- Atlantic Whitefish
- Designated Endangered in April 1984. Status re-examined and confirmed in November 2000, November 2010, and December 2022.
- Atlantic Wolffish
- Designated Special Concern in November 2000. Status re-examined and confirmed in November 2012.
- Aurora Trout
- Designated Endangered in April 1987. Status re-examined and confirmed in May 2000. Designation de-activated in May 2011 because it was concluded that this species is ineligible for assessment.
- Aweme Borer
- Designated Endangered in April 2006. Species considered in November 2020 and placed in the Data Deficient category.
- Baikal Sedge
- Designated Threatened in May 2005. Status re-examined and designated Special Concern in April 2016.
- Baird's Sparrow
- Designated Threatened in April 1989. Status re-examined and designated Not at Risk in April 1996. Status re-examined and designated Special Concern in May 2012.
- Band-tailed Pigeon
- Designated Special Concern in November 2008. Status re-examined and confirmed in May 2021.
- Banded Cord-moss
- Designated Special Concern in May 2005. Status re-examined and confirmed in May 2015.
- Banded Killifish (Newfoundland populations)
- Designated Special Concern in April 1989. Status re-examined and confirmed in May 2003 and May 2014.
- Banff Longnose Dace
- Extinct since 1986. Designated Extinct in April 1987. Status re-examined and confirmed in May 2000.
- Banff Springs Snail
- Designated Threatened in April 1997. Status re-examined and designated Endangered in May 2000, April 2008, and April 2018.
- Barn Owl (Eastern population)
- The species was considered a single unit and designated Special Concern in April 1984. In April 1999, the Western and Eastern populations were assessed separately. The Eastern population was designated Endangered. Status re-examined and confirmed in May 2000 and November 2010.
- Barn Owl (Western population)
- The species was considered a single unit and designated Special Concern in April 1984. In April 1999, the Western and Eastern populations were assessed separately. The Western population was designated Special Concern. Status re-examined and confirmed in November 2001. Status re-examined and designated Threatened in November 2010.
- Barn Owl
- The species was considered a single unit and designated Special Concern in April 1984. In April 1999, the Western and Eastern populations were assessed separately. The original designation for the Canadian range of the Barn Owl was de-activated.
- Barn Swallow
- Designated Threatened in May 2011. Status re-examined and designated Special Concern in May 2021.
- Barrow's Goldeneye (Eastern population)
- Designated Special Concern in November 2000. Status re-examined and confirmed in May 2011.
- Bashful Bulrush
- Designated Special Concern in April 1986. Status re-examined and designated Endangered in May 2000.
- Basking Shark (Pacific population)
- Designated Endangered in April 2007. Status re-examined and confirmed in April 2018.
- Bear's-foot Sanicle
- Designated Endangered in May 2001. Status re-examined and designated Threatened in November 2015.
- Bearded Owl-clover
- Designated Endangered in April 1998. Status re-examined and confirmed in May 2000 and November 2011.
- Bearded Seal
- Designated Not at Risk in April 1994. Species considered in April 2007 and placed in the Data Deficient category.
- Behr's Hairstreak
- Designated Threatened in November 2000. Status re-examined and designated Endangered in May 2012.
- Beluga Whale (Cumberland Sound population)
- The Southeast Baffin Island-Cumberland Sound population was designated Endangered in April 1990. In May 2004, the structure of the population was redefined: the Southeast Baffin Island animals (formerly part of the Southeast Baffin Island-Cumberland Sound population) were included as part of the "Western Hudson Bay population, 2004 designation". The newly defined "Cumberland Sound population" was designated Threatened in May 2004. Status re-examined and designated Endangered in November 2020.
- Beluga Whale (Eastern Beaufort Sea population)
- Designated Not at Risk in April 1985 and in May 2004.
- Beluga Whale (Eastern High Arctic - Baffin Bay population)
- Designated Special Concern in April 1992. Status re-examined and confirmed in May 2004 and November 2020.
- Beluga Whale (Eastern Hudson Bay population)
- Designated Threatened in April 1988. Status re-examined and designated Endangered in May 2004. Status re-examined and designated Threatened in November 2020.
- Beluga Whale (James Bay population)
- The species was considered a single unit ("Western Hudson Bay population, original designation") and designated Special Concern in May 2004. Following the Designatable Unit report on Beluga Whale (COSEWIC 2016), a new population structure was proposed and accepted by COSEWIC; the original “Western Hudson Bay population, 2004 designation” was split into James Bay population and Western Hudson Bay population. The James Bay population was designated Not at Risk in November 2020.
- Beluga Whale (St. Lawrence Estuary population)
- Designated Endangered in April 1983. Status re-examined and confirmed in April 1997. Status re-examined and designated Threatened in May 2004. Status re-examined and designated Endangered in November 2014.
- Beluga Whale (Ungava Bay population)
- Designated Endangered in April 1988. Status re-examined and confirmed in May 2004 and November 2020.
- Beluga Whale (Western Hudson Bay population)
- The species was considered a single unit ("Western Hudson Bay population, original designation") and designated Special Concern in May 2004. Following the Designatable Unit report on Beluga Whale (COSEWIC 2016), a new population structure was proposed and accepted by COSEWIC; the original “Western Hudson Bay population, 2004 designation” was split into James Bay population and Western Hudson Bay population. The Western Hudson Bay population was designated Not at Risk in November 2020.
- Beluga Whale (Western Hudson Bay population, 2004 designation)
- The "Western Hudson Bay population, original designation" was designated Not at Risk in April 1993. In May 2004, the structure of the population was redefined: the Southeast Baffin Island animals (formerly part of the Southeast Baffin Island-Cumberland Sound population) were included as part of the Western Hudson Bay population. The Western Hudson Bay population was designated Special Concern in May 2004. Following the Designatable Unit report on Beluga Whale (COSEWIC 2016), a new population structure was proposed and accepted by COSEWIC. Renamed as "Western Hudson Bay population, 2004 designation", in November 2020. Split into two populations in November 2020 (Western Hudson Bay population and James Bay population). The original unit "Western Hudson Bay, 2004 designation" was de-activated.
- Bering Cisco
- Species considered in April 1990 and placed in the Data Deficient category. Status re-examined and designated Special Concern in November 2004 and November 2017.
- Bering Wolffish
- Designated Special Concern in April 1989. Species considered in November 2002 and placed in the Data Deficient category.
- Bert's Predaceous Diving Beetle
- Designated Endangered in November 2009. Status re-examined and confirmed in December 2022.
- Bicknell's Thrush
- Designated Special Concern in April 1999. Status re-examined and designated Threatened in November 2009. Status re-examined and confirmed in December 2022.
- Bigmouth Buffalo (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Special Concern in April 1989. Split into two populations in April 2008 to allow a separate designation of the Bigmouth Buffalo (Great Lakes - Upper St. Lawrence populations). The Bigmouth Buffalo (Great Lakes – Upper St. Lawrence populations) was designated Not at Risk in April 2008.
- Bigmouth Buffalo (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Special Concern in April 1989. Split into two populations in April 2008 to allow a separate designation of the Bigmouth Buffalo (Great Lakes - Upper St. Lawrence populations). The Bigmouth Buffalo (Saskatchewan – Nelson River populations) was not assessed in April 2008; it retained the Special Concern designation of the original Bigmouth Buffalo. The population was designated Special Concern in April 2009.
- Bigmouth Buffalo
- The species was considered a single unit and designated Special Concern in April 1989. Split into two populations in April 2008 to allow a separate designation of the Bigmouth Buffalo (Great Lakes - Upper St.Lawrence populations). Bigmouth Buffalo (Saskatchewan – Nelson River populations) was assessed in April 2009. The original designation was de-activated.
- Bigmouth Shiner
- Designated Special Concern in April 1985. Status re-examined and designated Not at Risk in November 2003.
- Bird's-foot Violet
- Designated Threatened in April 1990. Status re-examined and designated Endangered in May 2002.
- Black Buffalo
- Designated Special Concern in April 1989. Species considered in April 2007 and placed in the Data Deficient category.
- Black Redhorse
- Designated Threatened in April 1988. Status re-examined and confirmed in May 2005 and May 2015.
- Black Tern
- Designated Not at Risk in April 1988 and in April 1996.
- Black-footed Ferret
- Extirpated by 1974. Designated Extirpated in April 1978. Status re-examined and confirmed in May 2000, April 2009, and December 2021.
- Black-tailed Prairie Dog
- Designated Special Concern in April 1978. Status re-examined and confirmed in April 1988, April 1999 and November 2000. Status re-examined and designated Threatened in November 2011.
- Blackfin Cisco
- Designated Threatened in April 1988. Species considered in April 2007 and placed in the Data Deficient category.
- Blackline Prickleback
- Designated Special Concern in April 1989. Species considered in May 2003 and placed in the Data Deficient category.
- Blackstripe Topminnow
- Designated Special Concern in April 1985. Status re-examined and confirmed in May 2001 and May 2012.
- Blanchard's Cricket Frog
- Designated Endangered in April 1990. Status re-examined and confirmed in May 2001 and May 2011.
- Blanding's Turtle (Great Lakes / St. Lawrence population)
- Designated Threatened in May 2005. Status re-examined and designated Endangered in November 2016.
- Blanding's Turtle (Nova Scotia population)
- Designated Threatened in April 1993. Status re-examined and designated Endangered in May 2005 and November 2016.
- Blanket-leaved Willow
- Designated Special Concern in May 2000. Status re-examined and confirmed in April 2018.
- Blue Ash
- Designated Threatened in April 1983. Status re-examined and designated Special Concern in November 2000. Status re-examined and designated Threatened in November 2014.
- Blue Racer
- Designated Endangered in April 1991. Status re-examined and confirmed in May 2002 and May 2012.
- Blue Shark (North Atlantic population)
- Designated Special Concern in April 2006. Status re-examined and designated Not at Risk in November 2016.
- Blue Shark (North Pacific population)
- Species considered in April 2006 and placed in the Data Deficient category. Status re-examined and designated Not at Risk in November 2016.
- Blue Walleye
- Extinct since 1965. Designated Extinct in April 1985. Status re-examined and confirmed in May 2000.
- Blue Whale (Atlantic population)
- The species was considered a single unit and designated Special Concern in April 1983. Split into two populations in May 2002. The Atlantic population was designated Endangered in May 2002. Status re-examined and confirmed in May 2012.
- Blue Whale (Pacific population)
- The species was considered a single unit and designated Special Concern in April 1983. Split into two populations in May 2002. The Pacific population was designated Endangered in May 2002. Status re-examined and confirmed in May 2012.
- Blue Whale
- The species was considered a single unit and designated Special Concern in April 1983. In May 2002, the species was split into two populations: Blue Whale (Atlantic population) and Blue Whale (Pacific population). The Atlantic population and the Pacific populations were both designated Endangered in May 2002. The original designation for Blue Whale was de-activated.
- Blue-grey Taildropper
- Designated Endangered in April 2006. Status re-examined and designated Threatened April 2016.
- Bluehearts
- Designated Threatened in April 1985. Status re-examined and designated Endangered in April 1998. Status re-examined and confirmed in May 2000 and November 2011.
- Blunt-lobed Woodsia
- Designated Threatened in April 1994. Status re-examined and designated Endangered in May 2000. Status re-examined and designated Threatened in April 2007.
- Bobolink
- Designated Threatened in April 2010. Status re-examined and designated Special Concern in May 2022.
- Bocaccio
- Designated Threatened in November 2002. Status re-examined and designated Endangered in November 2013.
- Bolander's Quillwort
- Designated Special Concern in April 1995. Status re-examined and designated Threatened in April 2006.
- Boreal Felt Lichen (Atlantic population)
- Designated Endangered in May 2002. Status re-examined and confirmed in November 2014.
- Boreal Felt Lichen (Boreal population)
- Designated Special Concern in May 2002. Status re-examined and confirmed in November 2014.
- Bowhead Whale (Bering-Chukchi-Beaufort population)
- The "Eastern and Western Arctic populations" were given a single designation of Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow separate designations in April 1986. The Western Arctic population was designated Endangered in April 1986. The population was renamed to "Bering-Chukchi-Beaufort population" and designated Special Concern in May 2005. Status re-examined and confirmed in April 2009.
- Bowhead Whale (Davis Strait-Baffin Bay population)
- The "Eastern and Western Arctic populations" were given a single designation of Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow separate designations in April 1986. The Eastern Arctic population was not re-evaluated in April 1986, but retained the Endangered status of the original "Eastern and Western Arctic populations". The Eastern Arctic population was further split into two populations (Hudson Bay-Foxe Basin population and Davis Strait-Baffin Bay population) in May 2005, and the Davis Strait-Baffin Bay population was designated Threatened. In April 2009, the Hudson Bay-Foxe Basin population and the Davis Strait-Baffin Bay population were considered a single unit (Eastern Canada-West Greenland population) and the original Davis Strait-Baffin Bay population was de-activated.
- Bowhead Whale (Eastern Arctic population)
- The "Eastern and Western Arctic populations" were given a single designation of Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow separate designations in April 1986. Eastern Arctic population was not re-evaluated, but retained the Endangered status of the original "Eastern and Western Arctic populations". The Eastern Arctic population was further split into two populations (Hudson Bay-Foxe Basin population and Davis Strait-Baffin Bay population) in May 2005, and the original designation was de-activated.
- Bowhead Whale (Eastern Canada-West Greenland population)
- The "Eastern and Western Arctic populations" were given a single designation of Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow separate designations in April 1986. The Eastern Arctic population was not re-evaluated in April 1986, but retained the Endangered status of the original "Eastern and Western Arctic populations". The Eastern Arctic population was further split into two populations (Hudson Bay-Foxe Basin population and Davis Strait-Baffin Bay population) in May 2005, and each was designated Threatened. In April 2009, the Hudson Bay-Foxe Basin population and the Davis Strait-Baffin Bay population were considered a single unit and this Eastern Canada-West Greenland population was designated Special Concern.
- Bowhead Whale (Eastern and Western Arctic populations)
- Designated Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow a separate designation for the Western Arctic population in April 1986. The original designation was de-activated.
- Bowhead Whale (Hudson Bay-Foxe Basin population)
- The "Eastern and Western Arctic populations" were given a single designation of Endangered in April 1980. Split into two populations (Eastern Arctic and Western Arctic) to allow separate designations in April 1986. The Eastern Arctic population was not re-evaluated in April 1986, but retained the Endangered status of the original "Eastern and Western Arctic populations". The Eastern Arctic population was further split into two populations (Hudson Bay-Foxe Basin population and Davis Strait-Baffin Bay population) in May 2005, and the Hudson Bay-Foxe Basin population was designated Threatened. In April 2009, the Hudson Bay-Foxe Basin population and the Davis Strait-Baffin Bay population were considered a single unit (Eastern Canada-West Greenland population) and the original Hudson Bay-Foxe Basin population was de-activated.
- Branched Bartonia
- Designated Special Concern in April 1992. Status re-examined and designated Threatened in November 2003.
- Bridle Shiner
- Designated Special Concern in April 1999. Status re-examined and confirmed in November 2001 and May 2013.
- Brindled Madtom
- Designated Special Concern in April 1985. Status re-examined and designated Not at Risk in May 2001.
- Brook Floater
- Designated Special Concern in April 2009. Status re-examined and confirmed in December 2022.
- Brook Spike-primrose
- Designated Endangered in April 2006. Status re-examined and confirmed in November 2018.
- Buffalograss
- Designated Special Concern in April 1998. Status re-examined and designated Threatened in November 2001. Status re-examined and designated Special Concern in November 2011.
- Bullsnake
- Species considered in May 2002 and placed in the Data Deficient category. Status re-examined and designated Special Concern in April 2017.
- Burrowing Owl
- Designated Threatened in April 1979. Status re-examined and confirmed in April 1991. Status re-examined and designated Endangered in April 1995. Status re-examined and confirmed in May 2000, April 2006, and April 2017.
- Butler's Gartersnake
- Designated Special Concern in April 1999. Status re-examined and designated Threatened in November 2001. Status re-examined and designated Endangered in November 2010.
- Butternut
- Designated Endangered in November 2003. Status re-examined and confirmed in April 2017.
- Canada Lynx
- Designated Not at Risk in April 1989 and in May 2001.
- Canada Warbler
- Designated Threatened in April 2008. Status re-examined and designated Special Concern in November 2020.
- Caribou (Atlantic-Gaspésie population)
- Atlantic-Gaspésie population designated Threatened in April 1984. Status re-examined and designated Endangered in May 2000.Status re-examined and confirmed in May 2002 and November 2014.
- Caribou (Boreal population)
- The Boreal population was designated Threatened in May 2000. This newly-defined population is comprised of a portion of the de-activated "Western population" and all of the de-activated "Labrador-Ungava population". Status re-examined and confirmed in May 2002 and November 2014.
- Caribou (Central Mountain population)
- Following the Designatable Unit report on caribou (COSEWIC 2011), a new population structure was proposed and accepted by COSEWIC. This resulted in the new Central Mountain population, composed of 12 subpopulations from the previous Southern Mountain population of Woodland Caribou (COSEWIC 2002). The Central Mountain population of Caribou was designated Endangered in May 2014.
- Caribou (Dolphin and Union population)
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union population of Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split to allow designation of three separate populations in 1991: Banks Island (Endangered), High Arctic (Endangered) and Low Arctic (Threatened) populations. In May 2004 all three population designations were de-activated, and the Peary Caribou, Rangifer tarandus pearyi, was assessed separately from the Dolphin and Union population of Caribou, Rangifer tarandus. The Dolphin and Union population is comprised of a portion of the former "Low Arctic population", and it was designated Special Concern in May 2004. Status re-examined and designated Endangered in November 2017.
- Caribou (Newfoundland population)
- Newfoundland population was designated Not at Risk in April 1984. Status re-examined and confirmed in May 2000 and in May 2002. Status re-examined and designated Special Concern in November 2014.
- Caribou (Northern Mountain population)
- The Northern Mountain population was designated Not at Risk in May 2000. This population was formerly designated as part of the "Western population" (now de-activated). Status re-examined and designated Special Concern in May 2002. Following the Designatable Unit report on Caribou (COSEWIC 2011), a new population structure was proposed and accepted by COSEWIC. This new Northern Mountain population is composed of all 36 subpopulations in the previous Northern Mountain population of Woodland Caribou in addition to 9 subpopulations from the previous (2002) Southern Mountain population of Woodland Caribou. The Northern Mountain population was designated Special Concern in May 2014.
- Caribou (Southern Mountain population)
- The Southern Mountain population was designated Threatened in May 2000. This population was formerly designated as part of the "Western population" (now de-activated). Status re-examined and confirmed in May 2002. Following the Designatable Unit report on caribou (COSEWIC 2011), a new population structure was proposed and accepted by COSEWIC. This resulted in the new Southern Mountain population, composed of 17 subpopulations from the former Southern Mountain population of Woodland Caribou (COSEWIC 2002). The remaining subpopulations were assigned to the new Central and Northern Mountain populations.The Southern Mountain population was designated Endangered in May 2014.
- Caribou dawsoni subspecies
- Extinct by the 1920s. Designated Extinct in April 1984. Status re-examined and confirmed in May 2000.
- Carmine Shiner
- Designated Special Concern in April 1994. Status re-examined and designated Threatened in November 2001 and in April 2006. Status re-examined and designated Endangered in April 2018.
- Caspian Tern
- Designated Special Concern in April 1978. Status re-examined and designated Not at Risk in April 1999.
- Central Stoneroller
- Designated Special Concern in 1985. Status re-examined and designated Not at Risk in 1998.
- Cerulean Warbler
- Designated Special Concern in April 1993. Status re-examined and confirmed in May 2003. Status re-examined and designated Endangered in November 2010.
- Channel Darter (Lake Erie populations)
- The species was considered a single unit and designated Threatened in April 1993. Status re-examined and confirmed in May 2002. When the species was split into separate units in November 2016, the "Lake Erie populations" unit was designated Endangered.
- Channel Darter (Lake Ontario populations)
- The species was considered a single unit and designated Threatened in April 1993. Status re-examined and confirmed in May 2002. When the species was split into separate units in November 2016, the "Lake Ontario populations" unit was designated Endangered.
- Channel Darter (St. Lawrence populations)
- The species was considered a single unit and designated Threatened in April 1993. Status re-examined and confirmed in May 2002. When the species was split into separate units in November 2016, the "St. Lawrence populations" unit was designated Special Concern.
- Channel Darter
- The species was considered a single unit and designated Threatened in April 1993. Status re-examined and confirmed in May 2002. Split into populations in November 2016. The original designation was de-activated.
- Chestnut Lamprey (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Special Concern in April 1991. Split into two populations in November 2010. The "Great Lakes - Upper St. Lawrence populations" unit was considered in November 2010 and placed in the Data Deficient category.
- Chestnut Lamprey (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Special Concern in April 1991. Split into two populations in November 2010. The "Saskatchewan - Nelson River populations" unit was was considered in November 2010 and placed in the Data Deficient category.
- Chestnut Lamprey
- The species was considered a single unit and designated Special Concern in April 1991. Split into two populations in November 2010. The original designation was de-activated.
- Chestnut-collared Longspur
- Designated Threatened in November 2009. Status re-examined and designated Endangered in November 2019.
- Chimney Swift
- Designated Threatened in April 2007. Status re-examined and confirmed in April 2018.
- Chinook Salmon (Okanagan population)
- Designated Endangered in an emergency assessment on 4 May 2005. Status re-examined and designated Threatened in April 2006. Status re-examined and designated Endangered in April 2017.
- Chiselmouth
- Species considered in April 1997 and placed in the Data Deficient category. Re-examined in May 2003 and designated Not at Risk.
- Climbing Prairie Rose
- Designated Special Concern in April 1986. Status re-examined and designated Threatened in May 2002. Status re-examined and designated Special Concern in May 2003.
- Coastal Giant Salamander
- Designated Special Concern in April 1989. Status re-examined and designated Threatened in November 2000 and May 2014.
- Coastal Manroot
- Designated Endangered in November 2009. Status re-examined and confirmed in December 2022.
- Coastal Tailed Frog
- Designated Special Concern in May 2000. Status re-examined and confirmed in November 2011.
- Coastal Vesper Sparrow
- Designated Endangered in April 2006. Status re-examined and confirmed in April 2018.
- Coastal Wood Fern
- Designated Special Concern in April 1998. Status re-examined and confirmed in November 2001 and May 2021.
- Coastrange Sculpin (Cultus Lake population)
- Designated Special Concern in April 1997. Status re-examined and designated Threatened in November 2000 and in April 2010. Status re-examined and designated Endangered in November 2019.
- Cobblestone Tiger Beetle
- Designated Endangered in November 2008. Status re-examined and designated Special Concern in May 2021.
- Coeur d'Alene Salamander
- Designated Special Concern in April 1998. Status re-examined and confirmed in November 2001, November 2007, and May 2021.
- Coho Salmon (Interior Fraser population)
- Designated Endangered in May 2002. Status re-examined and designated Threatened in November 2016.
- Colicroot
- Designated Threatened in April 1988. Status re-examined and confirmed in November 2000. Status re-examined and designated Endangered in November 2015.
- Columbia Sculpin
- Designated Special Concern in May 2000. Status re-examined and confirmed in November 2010 and November 2019.
- Columbian Carpet Moss
- Designated Special Concern in May 2004. Status re-examined and confirmed in November 2014.
- Common Five-lined Skink (Carolinian population)
- The species was considered a single unit and designated Special Concern in April 1998. Split into two populations in April 2007. The Carolinian population was designated Endangered in April 2007. Status re-examined and confirmed in May 2021.
- Common Five-lined Skink (Great Lakes / St. Lawrence population)
- The species was considered a single unit and designated Special Concern in April 1998. Split into two populations in April 2007. The Great Lakes / St. Lawrence population was designated Special Concern in April 2007. Status re-examined and confirmed in May 2021.
- Common Hoptree
- Designated Special Concern in April 1984. Status re-examined and designated Threatened in November 2002. Status re-examined and designated Special Concern in November 2015.
- Common Nighthawk
- Designated Threatened in April 2007. Status re-examined and designated Special Concern in April 2018.
- Cooper's Hawk
- Designated Special Concern in April 1983. Status re-examined and designated Not at Risk in April 1996.
- Copper Redhorse
- Designated Threatened in April 1987. Status re-examined and designated Endangered in November 2004 and May 2014.
- Cordilleran Sucker
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, the species formerly considered Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi). The original 2010 "Pacific populations' unit of Mountain Sucker is now known as Cordilleran Sucker, and was designated Threatened in December 2022.
- Cougar (Eastern population)
- Designated Endangered in April 1978. Species considered in April 1998 and placed in the Data Deficient category.
- Crooked-stem Aster
- Designated Special Concern in April 1999. Status re-examined and designated Threatened in May 2002. Status re-examined and designated Special Concern in November 2012.
- Cryptic Paw Lichen
- Designated Special Concern in April 1995 and in April 2006. Status re-examined and designated Threatened in May 2019.
- Cucumber Tree
- Designated Endangered in April 1984. Status re-examined and confirmed Endangered in April 1999, May 2000, and April 2010.
- Cusk
- Designated Threatened in May 2003. Status re-examined and designated Endangered in November 2012.
- Cutlip Minnow
- Designated Not at Risk in April 1994. Status re-examined and designated Special Concern in November 2013.
- Dakota Skipper
- Designated Threatened in November 2003. Status re-examined and designated Endangered in May 2014.
- Deepwater Cisco
- Extinct since 1952. Designated Extinct in April 1988. Status re-examined and confirmed in May 2000.
- Deepwater Sculpin (Great Lakes - Upper St. Lawrence populations)
- The "Great Lakes - Upper St. Lawrence populations" unit (which includes the former "Great Lakes populations" unit, designated Threatened in April 1987) was designated Special Concern in April 2006. Status re-examined and confirmed in April 2017.
- Deepwater Sculpin (Great Lakes populations)
- Designated Threatened in April 1987. The designation of the Great Lakes populations unit was de-activated in April 2006. The former Great Lakes populations unit is contained within the Great Lakes - Western St. Lawrence populations unit.
- Deepwater Sculpin (Saskatchewan - Nelson River populations)
- “Western populations” was considered a single unit and designated Not at Risk in April 2006. When the species was split into five separate units in April 2017, the 'Saskatchewan – Nelson River populations' unit was designated Not at Risk.
- Deepwater Sculpin (Southern Hudson Bay - James Bay populations)
- “Western populations" was considered a single unit and designated Not at Risk in April 2006. When the species was split into five separate units in April 2017, the 'Southern Hudson Bay – James Bay populations' unit was designated Data Deficient.
- Deepwater Sculpin (Waterton Lake population)
- “Western populations” was considered a single unit and designated Not at Risk in April 2006. When the species was split into five separate units in April 2017, the 'Waterton Lake population' unit was designated Special Concern.
- Deepwater Sculpin (Western Arctic populations)
- “Western populations” was considered a single unit and designated Not at Risk in April 2006. When the species was split into five separate units in April 2017, the 'Western Arctic populations' unit was designated Not at Risk.
- Deepwater Sculpin (Western Hudson Bay populations)
- “Western populations” was considered a single unit and designated Not at Risk in April 2006. When the species was split into five separate units in April 2017, the 'Western Hudson Bay populations' unit was designated Not at Risk.
- Deepwater Sculpin (Western populations)
- "Western populations" was considered a single unit and designated Not at Risk in April 2006. Split into five separate units in April 2017. The original designation was de-activated.
- Deerberry
- Designated Threatened in April 1994. Status re-examined and confirmed in November 2000 and November 2020.
- Deltoid Balsamroot
- Designated in April 1996 as Endangered. Status re-examined and confirmed Endangered in May 2000 and in April 2009.
- Dense Blazing Star
- Designated Special Concern in April 1988. Status re-examined and designated Threatened in May 2001. Status re-examined and confirmed in April 2010.
- Desert Nightsnake
- Designated Endangered in May 2001 and May 2011.
- Dromedary Jumping-slug
- Designated Threatened in May 2003. Status re-examined and confirmed in May 2014.
- Drooping Trillium
- Designated Endangered in April 1996. Status re-assessed and confirmed in May 2000 and in April 2009.
- Dun Skipper vestris subspecies
- Designated Threatened in November 2000. Status re-examined and confirmed in May 2013.
- Dusky Dune Moth
- Designated Endangered in November 2007. Status re-examined and designated Threatened in May 2022.
- Dwarf Hackberry
- Designated Special Concern in April 1985. Status re-examined and designated Threatened in November 2003.
- Dwarf Lake Iris
- Designated Threatened in November 2004. Status re-examined and designated Special Concern in November 2010.
- Dwarf Wedgemussel
- Extirpated by 1968. Designated Extirpated in April 1999. Status re-examined and confirmed in May 2000, November 2009, and December 2021.
- Dwarf Woolly-heads (Southern Mountain population)
- Designated Endangered in November 2003. Renamed Dwarf Woolly-heads (Southern Mountain population) in April 2006 and designated Endangered.
- Eastern Bluebird
- Designated Special Concern in April 1984. Status re-examined and designated Not at Risk in April 1996.
- Eastern Box Turtle
- Species considered in May 2002 and placed in the Data Deficient category. Status re-examined and designated Extirpated in November 2014.
- Eastern False Rue-anemone
- Designated Special Concern in April 1990. Status re-examined and designated Threatened in May 2005. Status re-examined and designated Special Concern in May 2022.
- Eastern Foxsnake (Carolinian population)
- The species was considered a single unit and designated Threatened in April 1999 and May 2000. Split into two populations in April 2008. The Carolinian population was designated Endangered in April 2008. Status re-examined and designated Threatened in December 2021.
- Eastern Foxsnake (Great Lakes / St. Lawrence population)
- The species was considered a single unit and designated Threatened in April 1999 and May 2000. Split into two populations in April 2008. The Great Lakes / St. Lawrence population was designated Endangered in April 2008. Status re-examined and designated Threatened in December 2021.
- Eastern Foxsnake
- The species was considered a single unit and designated Threatened in April 1999 and May 2000. Split into two populations in April 2008. The original designation was de-activated.
- Eastern Hog-nosed Snake
- Designated Special Concern in April 1997. Status re-examined and designated Threatened in November 2001, November 2007, and May 2021.
- Eastern Lilaeopsis
- Designated Special Concern in April 1987 and in May 2004.
- Eastern Milksnake
- Designated Special Concern in May 2002. Status re-examined and confirmed in May 2014.
- Eastern Mole
- Designated Special Concern in April 1980. Status re-examined and confirmed in April 1998, November 2000, and November 2010.
- Eastern Mountain Avens
- Designated Endangered in April 1986. Status re-examined and confirmed Endangered in April 1999, May 2000, and April 2010.
- Eastern Musk Turtle
- Designated Threatened in May 2002. Status re-examined and designated Special Concern in November 2012.
- Eastern Persius Duskywing
- Designated Endangered in April 2006. Status re-examined and confirmed in April 2016.
- Eastern Pondmussel
- Designated Endangered in April 2007. Status re-examined and designated Special Concern in April 2017.
- Eastern Prairie Fringed Orchid
- Designated Special Concern in April 1986. Status re-examined and designated Endangered in May 2003.
- Eastern Prickly Pear Cactus
- Designated Endangered in April 1985. Status re-examined and confirmed Endangered in April 1998, May 2000, and April 2010.
- Eastern Ribbonsnake (Atlantic population)
- Designated Threatened in May 2002. Status re-examined and confirmed in November 2012.
- Eastern Ribbonsnake (Great Lakes population)
- Designated Special Concern in May 2002. Status re-examined and confirmed in November 2012.
- Eastern Sand Darter (Ontario population)
- The species was considered a single unit and designated Threatened in April 1994 and November 2000. When the species was split into separate units in November 2009, the "Ontario populations" unit was designated Threatened. Population name changed to Ontario population in May 2022, and was further split into two populations (West Lake population and Southwestern Ontario population). The designation for the Ontario population was de-activated.
- Eastern Sand Darter (Quebec population)
- The species was considered a single unit and designated Threatened in April 1994 and November 2000. When the species was split into separate units in November 2009, the "Quebec populations" unit was designated Threatened. Population name changed to Quebec population in May 2022. Status re-examined and designated Special Concern in May 2022.
- Eastern Sand Darter (Southwestern Ontario population)
- The species was considered a single unit and designated Threatened in April 1994 and November 2000. When the species was split into separate units in November 2009, the "Ontario populations" unit was designated Threatened. Population name changed to Ontario population in May 2022, and was further split into two populations (West Lake population and Southwestern Ontario population). The Southwestern Ontario population was designated Threatened.
- Eastern Sand Darter (West Lake population)
- The species was considered a single unit and designated Threatened in April 1994 and November 2000. When the species was split into separate units in November 2009, the "Ontario populations" unit was designated Threatened. Population name changed to Ontario population in May 2022, and was further split into two populations (West Lake population and Southwestern Ontario population). The West Lake population was designated Threatened.
- Eastern Sand Darter
- The species was considered a single unit and designated Threatened in April 1994 and November 2000. Split into two populations in November 2009. The original designation was de-activated.
- Eastern Tiger Salamander (Carolinian population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations: Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with two different populations that received separate designations. The Carolinian population of the Eastern Tiger Salamander was assessed as Extirpated in November 2012. Status re-examined and confirmed in May 2023.
- Eastern Tiger Salamander (Prairie population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations: Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with two different populations that received separate designations. The Prairie population of the Eastern Tiger Salamander was designated Endangered in November 2013.
- Eastern Whip-poor-will
- Designated Threatened in April 2009. Status re-examined and designated Special Concern in December 2022.
- Eastern Wolf
- In 1999, the Eastern Grey Wolf (Canis lupus lycaon) was considered a subspecies of the Grey Wolf and was placed in the Data Deficient category. Status was re-examined (as Eastern Wolf, Canis lupus lycaon) and designated Special Concern in May 2001. New genetic analyses indicate that the Eastern Wolf is not a subspecies of Grey Wolf. In May 2015, a new wildlife species, Eastern Wolf (Canis sp. cf. lycaon) was designated Threatened.
- Eastern Yellow-bellied Racer
- Designated Special Concern in April 1991. Status re-examined and designated Threatened in November 2004 and November 2015.
- Edwards' Beach Moth
- Designated Endangered in April 2009. Status re-examined and confirmed in May 2021.
- Eelgrass Limpet
- Extinct since 1929. Designated Extinct in April 1996. Status re-examined and confirmed in May 2000.
- Engelmann's Quillwort
- Designated Endangered in April 1992. Status re-examined and confirmed in May 2001.
- Enos Lake Benthic Threespine Stickleback
- Original designation (including both Benthic and Limnetic species) was Threatened in April 1988. Split into two species when re-examined in November 2002 and the Enos Lake Benthic Threespine Stickleback was designated Endangered. Status re-examined and confirmed in May 2012.
- Enos Lake Limnetic Threespine Stickleback
- Original designation (including both Benthic and Limnetic species) was Threatened in April 1988. Split into two species when re-examined in November 2002 and the Enos Lake Limnetic Threespine Stickleback was designated Endangered. Status re-examined and confirmed in May 2012.
- Enos Lake Threespine Sticklebacks
- Designated Threatened in April 1988. Split into two species when re-examined in November 2002: Enos Lake Benthic Threespine Stickleback and Enos Lake Limnetic Threespine Stickleback. The original designation was de-activated.
- Ermine haidarum subspecies
- Designated Special Concern in April 1984. Status re-examined and designated Threatened in May 2001 and May 2015.
- Eskimo Curlew
- Designated Endangered in April 1978. Status re-examined and confirmed Endangered in May 2000 and November 2009.
- Eulachon (Nass / Skeena Rivers population)
- Designated Threatened in May 2011. Status re-examined and designated Special Concern in May 2013.
- European Whitefish (Dezadeash Lake small-bodied population)
- Squanga Whitefish (Coregonus sp.) was considered a single unit and designated Special Concern in April 1987. In April 2018, the unit was split into three separate species of European Whitefish, Coregonus lavaretus, and the Dezadeash Lake small-bodied population of European Whitefish was designated Threatened.
- European Whitefish (Little Teslin Lake small-bodied population)
- Squanga Whitefish (Coregonus sp.) was considered a single unit and designated Special Concern in April 1987. In April 2018, the unit was split into three separate species of European Whitefish, Coregonus lavaretus, and the Little Teslin Lake small-bodied population of European Whitefish was designated Threatened.
- European Whitefish (Squanga Lake small-bodied population)
- Squanga Whitefish (Coregonus sp.) was considered a single unit and designated Special Concern in April 1987. In April 2018, the unit was split into three separate species of European Whitefish, Coregonus lavaretus, and the Squanga Lake small-bodied population of European Whitefish was designated Threatened.
- False Hop Sedge
- Designated Threatened in April 1997. Status re-examined and designated Endangered in May 2000 and November 2011.
- Fernald's Braya
- Designated Threatened in April 1997. Status re-examined and confirmed in May 2000. Status re-examined and designated Endangered in November 2012.
- Fernald's Milk-vetch
- Designated Special Concern in April 1997. Status re-examined and confirmed in November 2001.
- Ferruginous Hawk
- Designated Threatened in April 1980. Status re-examined and designated Special Concern in April 1995. Status re-examined and designated Threatened in April 2008. Status re-examined and designated Special Concern in May 2021.
- Fin Whale (Atlantic population)
- The species was considered a single unit and designated Special Concern in April 1987. Split into two populations (Atlantic and Pacific) in May 2005. The Atlantic population was designated Special Concern in May 2005. Status re-examined and confirmed in May 2019.
- Fin Whale (Pacific population)
- The species was considered a single unit and designated Special Concern in April 1987. Split into two populations (Atlantic and Pacific) in May 2005. The Pacific population was designated Threatened in May 2005. Status re-examined and designated Special Concern in May 2019.
- Fin Whale
- The species was considered a single unit and designated Special Concern in April 1987. Split into two populations in May 2005. The original designation was de-activated.
- Five-lined Skink
- The species was considered a single unit and designated Special Concern in April 1998. Split into two populations in April 2007. The designation was de-activated in April 2007.
- Five-spotted Bogus Yucca Moth
- Designated Endangered in April 2006. Status re-examined and confirmed in May 2013.
- Flammulated Owl
- Designated Special Concern in April 1988. Status re-examined and confirmed Special Concern in April 1999, November 2001, and April 2010.
- Flathead Catfish
- Species considered in April 1993 and placed in the Data Deficient category. Category re-examined and confirmed in April 2008.
- Floccose Tansy
- Designated Special Concern in May 2000. Status re-examined and confirmed in April 2018.
- Flooded Jellyskin
- Designated Threatened in May 2004. Status re-examined and designated Special Concern in November 2015.
- Foothill Sedge
- Designated Endangered in April 2008. Status re-examined and designated Special Concern in December 2022.
- Fourhorn Sculpin (Freshwater form)
- Designated Special Concern in April 1989. Species considered in November 2003 and placed in the Data Deficient category.
- Fowler's Toad
- Designated Special Concern in April 1986. Status re-examined and designated Threatened in April 1999. Status re-examined and confirmed in November 2000. Status re-examined and designated Endangered in April 2010.
- Fringed Bat
- Designated Special Concern in April 1988. Species considered in May 2004 and placed in the Data Deficient category.
- Frosted Elfin
- Extirpated by 1988. Designated Extirpated in April 1999. Status re-examined and confirmed in May 2000, April 2010, and May 2019.
- Frosted Glass-whiskers (Atlantic population)
- Designated Special Concern in May 2005. Status re-examined and confirmed in November 2014.
- Frosted Glass-whiskers (Pacific population)
- Species considered in May 2005 and placed in the Data Deficient category. Status re-examined and confirmed in November 2014.
- Furbish's Lousewort
- Designated Endangered in April 1980. Status re-examined and confirmed Endangered in April 1998, May 2000, and May 2011.
- Gaspé Shrew
- Designated Special Concern in April 1988. Status re-examined and designated Not at Risk in April 2006.
- Gattinger's Agalinis
- Designated Endangered in April 1988. Status re-examined and confirmed in April 1999 and in May 2001.
- Ghost Antler Lichen
- Designated Special Concern in April 2006. Status re-examined and designated Not at Risk in November 2011.
- Giant Helleborine
- Designated Threatened in April 1984. Status re-examined and designated Special Concern in April 1998. Status re-examined and designated Not at Risk in November 2015.
- Giant Threespine Stickleback
- Designated Special Concern in April 1980. Status re-examined and confirmed in November 2013.
- Gold-edged Gem
- Designated Endangered in April 2006. Status re-examined and confirmed in November 2016.
- Golden Eagle
- Designated Not at Risk in April 1987 and in April 1996.
- Golden Paintbrush
- Designated Threatened in April 1995. Status re-examined and designated Endangered in May 2000 and in November 2007.
- Goldencrest
- Designated Threatened in April 1987. Status re-examined and confirmed in April 1999 and in May 2000. Status re-examined and designated Special Concern in May 2012.
- Goldenseal
- Designated Threatened in April 1991. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in May 2019.
- Grass Pickerel
- Designated Special Concern in May 2005. Status re-examined and confirmed in November 2014.
- Gravel Chub
- Last recorded in Thames River drainage, Ontario in 1958. Designated Endangered in April 1985. Status re-examined and designated Extirpated in April 1987. Status re-examined and confirmed in May 2000, April 2008, and May 2019.
- Gray Fox
- Designated Special Concern in April 1979. Status re-examined and designated Threatened in May 2002 and November 2015.
- Gray Ratsnake (Carolinian population)
- The species was considered a single unit and designated Threatened in April 1998 and in May 2000. Split into two populations in April 2007. The Carolinian population was designated Endangered in April 2007. Status re-examined and confirmed in April 2018.
- Gray Ratsnake (Great Lakes / St. Lawrence population)
- The species was considered a single unit and designated Threatened in April 1998 and in May 2000. Split into two populations in April 2007. The Great Lakes / St. Lawrence population was designated Threatened in April 2007. Status re-examined and confirmed in April 2018.
- Gray Ratsnake
- The species was considered a single unit and designated Threatened in April 1998 and in May 2000. Split into two populations in April 2007. The original designation was de-activated in April 2007.
- Great Auk
- Believed to be Extinct since 1844. Designated in April 1985 based on historic records only. Status report prepared and approved by COSEWIC in 1994. Status re-examined and confirmed in May 2000.
- Great Basin Gophersnake
- Designated Threatened in May 2002. Status re-examined and confirmed in May 2013.
- Great Basin Spadefoot
- Designated Special Concern in April 1998. Status re-examined and designated Threatened in November 2001, April 2007, and November 2019.
- Great Blue Heron fannini subspecies
- Designated Special Concern in April 1997 and April 2008. Designation de–activated in December 2022 because it was concluded that this species is ineligible for assessment.
- Great Grey Owl
- Designated Special Concern in April 1979. Status re-examined and confirmed in April 1990. Status re-examined and designated Not at Risk in April 1996.
- Great Plains Toad
- Designated Special Concern in April 1999. Status re-examined and confirmed in May 2002, April 2010, and May 2023.
- Greater Prairie-Chicken
- Last reported in 1987. Designated Endangered in April 1978. Status re-examined and designated Extirpated in April 1990. Status re-examined and confirmed in May 2000, November 2009, and December 2021.
- Greater Sage-Grouse phaios subspecies
- Has not been reported since the 1960s. Designated Extirpated in April 1997. Status re-examined and confirmed in May 2000, April 2008, and December 2021.
- Greater Sage-Grouse urophasianus subspecies
- Given conditional designation of Threatened in April 1997. Status re-examined and designated Endangered in April 1998 based on a revised status report. Status re-examined and confirmed in May 2000, April 2008, and December 2021.
- Greater Short-horned Lizard
- Designated Special Concern in April 1992. Status re–examined and designated Endangered in April 2007. Status re–examined and designated Special Concern in November 2018.
- Green Sturgeon
- Designated Special Concern in April 1987. Status re-examined and confirmed in November 2004 and November 2013.
- Green-scaled Willow
- Designated Threatened in April 2006. Status re-examined and confirmed in November 2020.
- Greenside Darter
- Designated Special Concern in April 1990. Status re-examined and designated Not at Risk in November 2006.
- Grey Whale (Atlantic population)
- Extirpated before the end of the 1700s. Designated Extirpated in April 1987. Status re-examined and confirmed in May 2000 and November 2009. Status re-examined and designated Extinct in May 2022.
- Grey Whale (Eastern North Pacific population)
- The species was considered a single unit and designated Not at Risk in April 1987. Status re-examined and designated Special Concern in May 2004. Split into two populations in November 2017 (Northern Pacific Migratory and Pacific Coast Feeding Group). The original designation was de-activated.
- Grey Whale (Northern Pacific Migratory population)
- The species was considered a single unit and designated Not at Risk in April 1987. Status re-examined and designated Special Concern in May 2004. Split into two populations in November 2017; the Northern Pacific Migratory population was designated Not at Risk.
- Grey Whale (Pacific Coast Feeding Group population)
- The species was considered a single unit and designated Not at Risk in April 1987. Status re-examined and designated Special Concern in May 2004. Split into two populations in November 2017; the Pacific Coast Feeding Group population was designated Endangered.
- Grizzly Bear (Northwestern population)
- The species was considered a single unit and designated Not at Risk in April 1979. Split into two populations in April 1991 (Prairie population and Northwestern population). The Northwestern population was designated Special Concern in April 1991. Status was re-examined and confirmed in May 2002. In May 2012, the entire species was re-examined and the Prairie and Northwestern populations were considered a single unit (Western population). The original Northwestern population was de-activated.
- Grizzly Bear (Prairie population)
- The species was considered a single unit and designated Not at Risk in April 1979. Split into two populations in April 1991 (Prairie population and Northwestern population). The Prairie population was designated Extirpated in April 1991. Status re-examined and confirmed in May 2000 and in May 2002. In May 2012, the entire species was re-examined and the Prairie and Northwestern populations were considered a single unit (Western population). The original Prairie population was de-activated.
- Grizzly Bear (Ungava population)
- The species was considered a single unit and designated Not at Risk in April 1979. Split into two populations in April 1991 (Prairie population and Northwestern population). In May 2012, the entire species was re-examined and split into two populations (Western and Ungava populations). The newly-defined Ungava population was designated Extinct in May 2012.
- Grizzly Bear (Western population)
- The species was considered a single unit and designated Not at Risk in April 1979. Split into two populations in April 1991 (Prairie population and Northwestern population). The Prairie population was designated Extirpated in April 1991. Status re-examined and confirmed in May 2000 and in May 2002. The Northwestern population was designated Special Concern in April 1991 and confirmed in May 2002. In May 2012, the entire species was re-examined and the Prairie and Northwestern populations were considered a single unit. This newly-defined Western population was designated Special Concern in May 2012.
- Grizzly Bear
- The species was considered a single unit and designated Not at Risk in April 1979. Split into two populations in April 1991 (Prairie population and Northwestern population). The original designation for "Grizzly Bear" across Canada was de-activated. In May 2012, the entire species was re-examined and split into two populations (Western and Ungava populations).
- Gulf of St. Lawrence Aster
- Designated Special Concern in April 1989. Status re-examined and designated Threatened in May 2004. Status re-examined and designated Endangered in May 2023.
- Gyrfalcon
- Designated Not at Risk in April 1978 and in April 1987.
- Hadley Lake Benthic Threespine Stickleback
- Extinct in 1999. Designated Extinct in April 1999. Status re-examined and confirmed in May 2000.
- Hadley Lake Limnetic Threespine Stickleback
- Extinct in 1999. Designated Extinct in April 1999. Status re-examined and confirmed in May 2000.
- Hairy Prairie-clover
- Designated Threatened in April 1998. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in November 2011.
- Half-moon Hairstreak (Okanagan-Similkameen population)
- The species was considered a single unit and designated Endangered in April 2006. Split into two populations in December 2022. The Okanagan-Similkameen population was designated Threatened in December 2022.
- Half-moon Hairstreak (Waterton Lakes population)
- The species was considered a single unit and designated Endangered in April 2006. Split into two populations in December 2022. The Waterton Lakes population was designated Endangered in December 2022.
- Half-moon Hairstreak
- The species was considered a single unit and designated Endangered in April 2006. Split into two populations in December 2022. The original designation was de-activated.
- Haller's Apple Moss
- Designated Threatened in November 2001. Status re-examined and confirmed in November 2011.
- Harbour Porpoise (Northwest Atlantic population)
- The Northwest Atlantic population was designated Threatened in April 1990 and in April 1991. Status re-examined and designated Special Concern in May 2003, April 2006, and May 2022.
- Harbour Porpoise (Pacific Ocean population)
- Species considered in April 1991 and placed in the Data Deficient category. Re-examined in November 2003 and designated Special Concern. Status re-examined and confirmed in April 2016.
- Harbour Seal Atlantic and Eastern Arctic subspecies
- Species considered in April 1999 and placed in the Data Deficient category. Re-examined in November 2007 and designated Not at Risk.
- Harbour Seal Lacs des Loups Marins subspecies
- Designated Special Concern in April 1996. Status re-examined and designated Endangered in November 2007 and April 2018.
- Hare-footed Locoweed
- Designated Special Concern in April 1995. Status re-examined and designated Threatened in May 2014.
- Harlequin Duck (Eastern population)
- The Eastern population was designated Endangered in April 1990. Status re-examined and designated Special Concern in May 2001 and November 2013.
- Heart-leaved Plantain
- Designated Endangered in April 1985. Status re-examined and confirmed Endangered in April 1998, May 2000, and November 2011.
- Henslow's Sparrow
- Designated Threatened in April 1984. Status re-examined and designated Endangered in April 1993. Status re-examined and confirmed in November 2000 and May 2011.
- Hill's Pondweed
- Designated Special Concern in April 1986. Status re-examined and confirmed in May 2005.
- Hoary Mountain-mint
- Designated Endangered in April 1986. Status re-examined and confirmed Endangered in April 1998, May 2000, and November 2011.
- Hooded Warbler
- Designated Threatened in April 1994. Status re-examined and confirmed in November 2000. Status re-examined and designated Not at Risk in May 2012.
- Hotwater Physa
- Designated Endangered in April 1998. Status re-examined and confirmed in May 2000 and April 2008.
- Humpback Whale (North Pacific population)
- The "Western North Atlantic and North Pacific populations" were given a single designation of Threatened in April 1982. Split into two populations in April 1985 (Western North Atlantic population and North Pacific population). The North Pacific population designated Threatened in 1985. Status re-examined and confirmed in May 2003. Status re-examined and designated Special Concern in May 2011. Status re-examined and confirmed in December 2022.
- Humpback Whale (Western North Atlantic and North Pacific populations)
- The "Western North Atlantic and North Pacific populations" were given a single designation of Threatened in April 1982. Split into two populations in April 1985 (Western North Atlantic population and North Pacific population). The original designation was de-activated.
- Humpback Whale (Western North Atlantic population)
- The "Western North Atlantic and North Pacific populations" were given a single designation of Threatened in April 1982. Split into two populations in April 1985 (Western North Atlantic population and North Pacific population). Western North Atlantic population designated Special Concern in April 1985. Status re-examined and designated Not at Risk in May 2003.
- Illinois Tick-trefoil
- No site records since 1888. Designated Extirpated in April 1991. Status re-examined and confirmed in May 2000.
- Incurved Grizzled Moss
- Designated Extirpated in November 2002. Status re-examined and confirmed in May 2012 and December 2021.
- Island Blue
- Designated Endangered in November 2000. Status re-examined and confirmed in May 2012 and December 2022.
- Island Marble
- Extirpated by 1910. Designated Extirpated in April 1999. Status re-examined and confirmed in May 2000, April 2010, and December 2022.
- Ivory Gull
- Designated Special Concern in April 1979. Status re-examined and confirmed in April 1996 and in November 2001. Status re-examined and designated Endangered in April 2006.
- Jefferson Salamander
- Designated Threatened in November 2000. Status re-examined and designated Endangered in November 2010.
- Juniper Sedge
- Designated Endangered in April 1999. Status re-examined and confirmed in May 2000.
- Karner Blue
- Has not been observed since 1991. Designated Extirpated in April 1997. Status re-examined and confirmed in May 2000, April 2010, and May 2019.
- Keen's Long-eared Bat
- Designated Special Concern in April 1988. Species considered in November 2003 and placed in the Data Deficient category.
- Kentucky Coffee-tree
- Designated Threatened in April 1983. Status re-examined and confirmed in November 2000 and May 2021.
- Kidneyshell
- Designated Endangered in May 2003. Status re-examined and confirmed in May 2013.
- Killer Whale (North Pacific resident populations)
- Designated Threatened in April 1999. The designation of the Killer Whale (North Pacific resident populations) was de-activated in November 2001 when it was split into three populations: Killer Whale (Northern resident population), Killer Whale (Southern resident population) and Killer Whale (Offshore population).
- Killer Whale (Northeast Pacific northern resident population)
- The “North Pacific resident populations” were given a single designation of Threatened in April 1999. Split into three populations in November 2001. The Northeast Pacific northern resident population was designated Threatened in November 2001. Status re-examined and confirmed in November 2008.
- Killer Whale (Northeast Pacific offshore population)
- The “North Pacific resident populations” were given a single designation of Threatened in April 1999. Split into three populations in November 2001. The Northeast Pacific offshore population was designated Special Concern in November 2001. Status re-examined and designated Threatened in November 2008.
- Killer Whale (Northeast Pacific southern resident population)
- The “North Pacific resident populations” were given a single designation of Threatened in April 1999. Split into three populations in November 2001. The Northeast Pacific southern resident population was designated Endangered in November 2001. Status re-examined and confirmed in November 2008.
- Killer Whale (Northeast Pacific transient population)
- Designated Special Concern in April 1999. Status re-examined and designated Threatened in November 2001 and in November 2008.
- Killer Whale (Northwest Atlantic / Eastern Arctic population)
- Species considered in April 1999 and in November 2001, and placed in the Data Deficient category. Re-examined in November 2008 and designated Special Concern.
- King Rail
- Designated Special Concern in April 1985. Status re-examined and designated Endangered in April 1994. Status re-examined and confirmed in November 2000 and in May 2011.
- Kirtland's Warbler
- Designated Endangered in April 1979. Status re-examined and confirmed in April 1999, May 2000, and April 2008.
- Kiyi
- The species was designated Special Concern in April 1988. Split into two subspecies (Upper Great Lakes Kiyi and Lake Ontario Kiyi) in May 2005. The original designation was de-activated.
- Labrador Duck
- Believed to be Extinct since 1875. Designated in April 1985 based on historic records only. Status report prepared and approved by COSEWIC in 1994. Status re-examined and confirmed in May 2000.
- Lake Chub (Atlin Warm Springs populations)
- The species was considered a single population unit (Northern British Columbia Hotsprings populations) in November 2004 and placed in the Data Deficient category. When the species was split into separate units in November 2018, the "Atlin Warm Springs populations" unit was designated Threatened.
- Lake Chub (Liard Hot Springs populations)
- The species was considered a single population unit (Northern British Columbia Hotsprings populations) in November 2004 and placed in the Data Deficient category. When the species was split into separate units in November 2018, the "Liard Hot Springs populations" unit was designated Threatened.
- Lake Chub (Northern British Columbia Hotsprings populations)
- The species was considered a single population unit (Northern British Columbia Hotsprings populations) in November 2004 and placed in the Data Deficient category. Split into two populations in November 2018. The original designation was de-activated.
- Lake Chubsucker
- Designated Special Concern in April 1994. Status re-examined and designated Threatened in November 2001. Status re-examined and designated Endangered in November 2008. Status re-examined and confirmed in May 2021.
- Lake Erie Watersnake
- Designated Endangered in April 1991 and in April 2006. Status re-examined and designated Special Concern in November 2015.
- Lake Ontario Kiyi
- The species was designated Special Concern in April 1988. Split into two subspecies (Upper Great Lakes Kiyi and Lake Ontario Kiyi) in May 2005. The Lake Ontario Kiyi was designated Extinct.
- Lake Sturgeon (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Great Lakes - Upper St. Lawrence populations" unit was designated Special Concern. Status re-examined and designated Threatened in November 2006. Status re-examined and confirmed in April 2017.
- Lake Sturgeon (Lake of the Woods - Rainy River populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Lake of the Woods – Rainy River populations" unit was designated Special Concern. Status re–examined and confirmed in November 2006. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit. The Lake of the Woods – Rainy River populations' unit was deactivated.
- Lake Sturgeon (Nelson River populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the "Nelson River populations" unit was designated Endangered. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit. The 'Nelson River populations' unit was deactivated.
- Lake Sturgeon (Red-Assiniboine Rivers - Lake Winnipeg populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the "Red-Assiniboine Rivers - Lake Winnipeg populations" unit was designated Endangered. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit. The 'Red–Assiniboine Rivers – Lake Winnipeg populations' unit was deactivated.
- Lake Sturgeon (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, the Western populations unit was split into five separate populations. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit and this 'Saskatchewan - Nelson River populations' unit was designated Endangered.
- Lake Sturgeon (Saskatchewan River populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the "Saskatchewan River populations" unit was designated Endangered. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit. The 'Saskatchewan River populations' unit was deactivated.
- Lake Sturgeon (Southern Hudson Bay - James Bay populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Southern Hudson Bay - James Bay populations" unit was designated Special Concern. Status re-examined and confirmed in November 2006. Status re-examined and confirmed in April 2017.
- Lake Sturgeon (Western Hudson Bay populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the "Western Hudson Bay populations" unit was designated Endangered. Status re-examined and confirmed in April 2017.
- Lake Sturgeon (Western populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the original Western populations unit was de-activated.
- Lake Sturgeon (Winnipeg River - English River populations)
- The species was considered a single unit and designated Not at Risk in April 1986. When the species was split into separate units in May 2005, the "Western populations" unit was designated Endangered. In November 2006, when the Western populations unit was split into five separate populations, the "Winnipeg River - English River populations" unit was designated Endangered. In April 2017, the Winnipeg - English River, Red-Assiniboine Rivers - Lake Winnipeg, Saskatchewan River, Nelson River, and Lake of the Woods - Rainy River populations were considered a single unit. The 'Winnipeg River – English River populations' unit was deactivated.
- Lake Sturgeon
- Designated Not at Risk in April 1986. The original designation was de-activated in May 2005 to allow designation of separate populations.
- Lake Whitefish (Lake Simcoe population)
- Designated Threatened in April 1987. Species considered in May 2005 and placed in the Data Deficient category.
- Lake Whitefish (Mira River population)
- Species considered in April 1999 and in November 2000, and placed in the Data Deficient category.
- Lake Winnipeg Physa
- Designated Endangered in November 2002. Species considered in November 2012 and placed in the Data Deficient category.
- Lakeside Daisy
- Designated Threatened in May 2002. Status re-examined and designated Special Concern in May 2021.
- Large Whorled Pogonia
- Designated Endangered in April 1986. Status re-examined and confirmed Endangered in April 1998, May 2000, and November 2011.
- Large-headed Woolly Yarrow
- Designated Special Concern in May 2000. Status re-examined and confirmed in April 2018.
- Least Bittern
- Designated Special Concern in April 1988. Status re-examined and confirmed in April 1999. Status re-examined and designated Threatened in November 2001 and in April 2009.
- Leatherback Sea Turtle (Atlantic population)
- The species was considered a single unit and designated Endangered in April 1981. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The Atlantic population was designated Endangered in May 2012. Status re-examined and confirmed in December 2022.
- Leatherback Sea Turtle (Pacific population)
- The species was considered a single unit and designated Endangered in April 1981. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The Pacific population was designated Endangered in May 2012. Status re-examined and confirmed in December 2022.
- Leatherback Sea Turtle
- The species was considered a single unit and designated Endangered in April 1981. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The original designation was de-activated.
- Lewis's Woodpecker
- Designated Special Concern in April 1999. Status re-examined and confirmed in November 2001. Status re-examined and designated Threatened in April 2010.
- Little Brown Myotis
- Designated Endangered in an emergency assessment on February 3, 2012. Status re-examined and confirmed in November 2013.
- Loggerhead Shrike
- The species was considered a single unit and designated Threatened in April 1986. The excubitorides and the migrans subspecies were designated separately in April 1991, and the original designation was de-activated.
- Loggerhead Shrike Eastern subspecies
- The species was considered a single unit and designated Threatened in April 1986. Split according to subspecies (excubitorides and migrans) in April 1991, and each received separate designations. The migrans subspecies was de-activated in May 2014 in recognition of new genetic information indicating that some of the individuals in southeastern Manitoba should not have been included in the migrans subspecies. Further split into a new unnamed subspecies (Eastern subspecies, Lanius ludovicianus ssp.) in May 2014 and was designated Endangered.
- Loggerhead Shrike Prairie subspecies
- The species was considered a single unit and designated Threatened in April 1986. Split according to subspecies in April 1991. The excubitorides subspecies retained the original Threatened designation from April 1986. Status re-examined and confirmed in May 2004 and May 2014.
- Loggerhead Shrike migrans subspecies
- The species was considered a single unit and designated Threatened in April 1986. Split according to subspecies in April 1991. The migrans subspecies was designated Endangered in April 1991. Status re-examined and confirmed in November 2000. De-activated in May 2014 in recognition of new genetic information indicating that some of the individuals in southeastern Manitoba should not have been included in the migrans subspecies.
- Long's Braya
- Designated Endangered in April 1997. Status re-examined and confirmed in May 2000 and May 2011.
- Long's Bulrush
- Designated Special Concern in April 1994. Status re-examined and confirmed in April 2017.
- Long-billed Curlew
- Designated Special Concern in April 1992. Status re-examined and confirmed in November 2002 and May 2011.
- Longjaw Cisco
- Extinct since 1975. Designated Extinct in April 1985. Status re-examined and confirmed in May 2000. Designation de-activated in May 2002 because it was concluded that this species is a synonym of the Shortjaw Cisco, Coregonus zenithicus, which was designated Threatened in 1987.
- Louisiana Waterthrush
- Designated Special Concern in April 1991. Status re-examined and confirmed in April 1996 and April 2006. Status re-examined and designated Threatened in November 2015.
- Lyall's Mariposa Lily
- Designated Threatened in May 2001. Status re-examined and designated Special Concern in May 2011.
- Mackenzie Hairgrass
- Designated Special Concern in April 1999. Status re-examined and confirmed in November 2001. Status re-examined and confirmed in April 2018.
- Macoun's Meadowfoam
- Designated Special Concern in April 1988. Status re-examined and designated Threatened in November 2004.
- Magnum Mantleslug
- Designated Special Concern in May 2012. Status re-examined and confirmed in December 2022.
- Mapleleaf (Great Lakes - Upper St. Lawrence population)
- Designated Threatened in April 2006. Status re-examined and designated Special Concern in November 2016.
- Mapleleaf (Saskatchewan – Nelson Rivers population)
- Designated Endangered in April 2006. Status re-examined and designated Threatened in November 2016.
- Marbled Murrelet
- Designated Threatened in April 1990. Status re-examined and confirmed in November 2000 and May 2012.
- Margined Madtom
- Designated Threatened in April 1989. Species considered in May 2002 and placed in the Data Deficient category.
- Margined Streamside Moss
- Designated Endangered in November 2002. Status re-examined and confirmed in May 2012.
- Maritime Ringlet
- Designated Endangered in April 1997. Status re-examined and confirmed in May 2000 and in April 2009.
- Massasauga (Carolinian population)
- The species was considered a single unit and designated Threatened in April 1991. Status re-examined and confirmed in November 2002. Split into two populations in November 2012. The Carolinian population was designated Endangered in November 2012.
- Massasauga (Great Lakes / St. Lawrence population)
- The species was considered a single unit and designated Threatened in April 1991. Status re-examined and confirmed in November 2002. Split into two populations in November 2012. The Great Lakes / St. Lawrence population was designated Threatened in November 2012.
- Massasauga
- The species was considered a single unit and designated Threatened in April 1991. Status re-examined and confirmed in November 2002. Split into two populations in November 2012. The original designation was de-activated.
- McCown's Longspur
- Designated Special Concern in April 2006. Status re-examined and designated Threatened April 2016.
- Mexican Mosquito-fern
- Designated Threatened in April 1984. Status re-examined and confirmed in April 1998, May 2000, and November 2008.
- Monarch
- Designated Special Concern in April 1997. Status re-examined and confirmed in November 2001 and in April 2010. Status re-examined and designated Endangered in November 2016.
- Mormon Metalmark (Prairie population)
- Designated Threatened in May 2003. Status re-examined and designated Special Concern in May 2014.
- Mormon Metalmark (Southern Mountain population)
- Designated Endangered in May 2003. Status re-examined and confirmed in May 2014.
- Mountain Beaver
- Designated Not at Risk in April 1984. Status re-examined and designated Special Concern in April 1999. Status re-examined and confirmed in November 2001, May 2012, and December 2022.
- Mountain Plover
- Designated Endangered in April 1987. Status re-examined and confirmed in November 2000, November 2009, and December 2021.
- Mountain Sucker (Milk River populations)
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi), which received separate designations. The original "Milk River populations" unit of Mountain Sucker was de-activated in December 2022.
- Mountain Sucker (Pacific populations)
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi), which received separate designations. The original "Pacific populations" unit of Mountain Sucker was de-activated in December 2022.
- Mountain Sucker (Saskatchewan - Nelson River populations)
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi), which received separate designations. The original "Saskatchewan - Nelson River populations" unit of Mountain Sucker was de-activated in December 2022.
- Mountain Sucker
- The species was considered a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010. The original designation was de-activated.
- Narwhal
- Designated Not at Risk in April 1986 and in April 1987. Status re-examined and designated Special Concern in November 2004.
- New Jersey Rush
- Designated Special Concern in April 1992. Status re-examined and confirmed in May 2004.
- Nodding Pogonia
- Designated Threatened in April 1988. Status re-examined and designated Endangered in April 1999. Status re-examined and confirmed in May 2000 and November 2010.
- Non-pollinating Yucca Moth
- Designated Endangered in April 2006. Status re-examined and confirmed in May 2013.
- Nooksack Dace
- Designated Endangered in April 1996. Status re-examined and confirmed in May 2000, April 2007, and November 2018.
- North Atlantic Right Whale
- The Right Whale was considered a single species and designated Endangered in 1980. Status re-examined and confirmed in April 1985 and in April 1990. Split into two species in May 2003 to allow a separate designation of the North Atlantic Right Whale. North Atlantic Right Whale was designated Endangered in May 2003 and November 2013.
- North Pacific Right Whale
- The Right Whale was considered a single species and designated Endangered in 1980. Status re-examined and confirmed in April 1985 and in April 1990. Split into two species in May 2003. North Pacific Right Whale was not re-evaluated in May 2003; it retained the Endangered status of the original Right Whale. Status re-examined and confirmed Endangered in November 2004 and May 2015.
- Northern Abalone
- Designated Threatened in April 1999. Status re-examined and confirmed in May 2000. Status re-examined and designated Endangered in April 2009.
- Northern Bobwhite
- Designated Endangered in April 1994. Status re-examined and confirmed in November 2003, May 2013, and May 2023.
- Northern Bottlenose Whale (Davis Strait-Baffin Bay-Labrador Sea population)
- The Northern Bottlenose Whale was given a single designation of Not at Risk in April 1993. Split into two populations in April 1996 to allow a separate designation of the Northern Bottlenose Whale (Scotian Shelf population). The Davis Strait-Baffin Bay-Labrador Sea population was not assessed in 1996; it retained the Not at Risk designation of the original Northern Bottlenose Whale. The population was designated Special Concern in May 2011.
- Northern Bottlenose Whale (Scotian Shelf population)
- The Northern Bottlenose Whale was given a single designation of Not at Risk in April 1993. Split into two populations in April 1996 to allow a separate designation of the Northern Bottlenose Whale (Scotian Shelf population). Scotian Shelf population designated Special Concern in April 1996. Status re-examined and designated Endangered in November 2002 and in May 2011.
- Northern Bottlenose Whale
- The Northern Bottlenose Whale was given a single designation of Not at Risk in April 1993. Split into two populations in April 1996 to allow a separate designation of the Northern Bottlenose Whale (Scotian Shelf population). Northern Bottlenose Whale (Davis Strait-Baffin Bay-Labrador Sea population) was not re-evaluated, but retains the Not at Risk designation of the original Northern Bottlenose Whale, and the latter was de-activated.
- Northern Brook Lamprey (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Special Concern in April 1991. When the species was split into separate units in April 2007, the "Great Lakes - Upper St Lawrence populations" unit was designated Special Concern. Status re-examined and confirmed in November 2020.
- Northern Brook Lamprey (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Special Concern in April 1991. When the species was split into separate units in April 2007, the "Saskatchewan-Nelson population" unit was designated Data Deficient. Status re-examined and designated Endangered in November 2020.
- Northern Brook Lamprey
- The species was considered a single unit and designated Special Concern in April 1991. Split into two populations in April 2007. The original designation was de-activated.
- Northern Dusky Salamander (Carolinian population)
- The species was considered a single unit and designated Not at Risk in April 1999. Split into two populations in May 2012. The Carolinian population was designated Endangered in May 2012.
- Northern Dusky Salamander (Quebec / New Brunswick population)
- The species was considered a single unit and designated Not at Risk in April 1999. Split into two populations in May 2012. The Quebec / New Brunswick population was designated Not at Risk in May 2012.
- Northern Dusky Salamander
- The species was considered a single unit and designated Not at Risk in April 1999. Split into two populations in May 2012. The original designation was de-activated.
- Northern Fur Seal
- Designated Not at Risk in April 1996. Status re-examined and designated Threatened in April 2006. Status re-examined and confirmed in November 2010 and December 2022.
- Northern Goshawk laingi subspecies
- Designated Special Concern in April 1995. Status re-examined and designated Threatened in November 2000 and May 2013.
- Northern Leopard Frog (Eastern populations)
- Designated Not at Risk in April 1999 and in April 2009.
- Northern Leopard Frog (Rocky Mountain population)
- Designated Endangered in April 1998. Status re-examined and confirmed in May 2000, April 2009, and in December 2021.
- Northern Leopard Frog (Western Boreal/Prairie populations)
- Designated Special Concern in April 1998. Status re-examined and confirmed in November 2002 and in April 2009.
- Northern Madtom
- Species considered in April 1993 and placed in the Data Deficient category. Re-examined in April 1998 and designated Special Concern. Status re-examined and designated Endangered in November 2002 and May 2012.
- Northern Map Turtle
- Designated Special Concern in May 2002. Status re-examined and confirmed in November 2012.
- Northern Myotis
- Designated Endangered in an emergency assessment on February 3, 2012. Status re-examined and confirmed in November 2013.
- Northern Red-legged Frog
- Designated Special Concern in April 1999. Status re-examined and confirmed in May 2002, November 2004, and May 2015.
- Northern Riffleshell
- Designated Endangered in April 1999. Status re-examined and confirmed in May 2000 and April 2010.
- Northern Rubber Boa
- Designated Special Concern in May 2003. Status re-examined and confirmed in April 2016.
- Northern Saw-whet Owl brooksi subspecies
- Designated Threatened in April 2006. Status re-examined and confirmed in November 2017.
- Northern Sunfish (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Not at Risk in April 1987. When the species was split into two separate units in April 2016, the "Great Lakes - Upper St. Lawrence populations " unit was designated Special Concern.
- Northern Sunfish (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Not at Risk in April 1987. When the species was split into two separate units in April 2016, the "Saskatchewan - Nelson River populations" unit was designated Not at Risk.
- Northern Sunfish
- The species was considered a single unit and designated Not at Risk in April 1987. Split into two separate units in April 2016. The original designation was de-activated.
- Northern Wolffish
- Designated Threatened in May 2001. Status re-examined and confirmed in November 2012.
- Northwestern Pond Turtle
- Designated Extirpated in May 2002. Status re-examined and confirmed in May 2012 and May 2023.
- Nugget Moss
- Designated Endangered in November 2006 and in November 2016.
- Nuttall's Cottontail nuttallii subspecies
- Designated Special Concern in April 1994, April 2006, and November 2016.
- Nuttall's Cottontail pinetis subspecies
- Designated Not at Risk in 1991 and in April 1994.
- Oldgrowth Specklebelly Lichen
- Designated Special Concern in April 1996. Status re-examined and confirmed in April 2010.
- Olive-sided Flycatcher
- Designated Threatened in November 2007. Status re-examined and designated Special Concern in April 2018.
- Olympia Oyster
- Designated Special Concern in November 2000 and in May 2011.
- Orangespotted Sunfish
- Designated Special Concern in April 1989. Designation de-activated in April 2008 because it was concluded that this species is ineligible for assessment.
- Ord's Kangaroo Rat
- Designated Special Concern in April 1995. Status re-examined and designated Endangered in April 2006. Status re-examined and confirmed in April 2017.
- Oregon Forestsnail
- Designated Endangered in November 2002. Status re-examined and confirmed in May 2013.
- Oregon Spotted Frog
- Designated Endangered in an emergency assessment on 13 September 1999. Status re-examined and confirmed in May 2000 and in May 2011.
- Ottoe Skipper
- Designated Endangered in May 2005. Status re-examined and confirmed in May 2015.
- Pacific Gophersnake
- Designated Extirpated in May 2002. Status re-examined and confirmed in May 2012 and May 2023.
- Pacific Sardine
- Designated Special Concern in April 1987. Status re-examined and designated Not at Risk in May 2002.
- Pacific Water Shrew
- Designated Threatened in April 1994 and in May 2000. Status re-examined and designated Endangered in April 2006. Status re-examined and confirmed in April 2016.
- Paddlefish
- Disappeared from Canada in approximately 1913. Designated Extirpated in April 1987. Status re-examined and confirmed in May 2000, April 2008, and May 2019.
- Pale Yellow Dune Moth
- Designated Special Concern in November 2007. Status re–examined and confirmed in November 2018.
- Pallid Bat
- Designated Special Concern in April 1988. Status re-examined and designated Threatened in May 2000. Status re-examined and confirmed in November 2010.
- Passenger Pigeon
- Believed to be Extinct since 1914. Designated in April 1985 based on historic records only. Status report prepared and approved by COSEWIC in 1994. Status re-examined and confirmed in May 2000.
- Paxton Lake Benthic Threespine Stickleback
- Designated Threatened in April 1998. Status re-examined and confirmed in April 1999. Status re-examined and designated Endangered in May 2000. Status re-examined and confirmed in April 2010.
- Paxton Lake Limnetic Threespine Stickleback
- Designated Threatened in April 1998. Status re-examined and confirmed in April 1999. Status re-examined and designated Endangered in May 2000. Status re-examined and confirmed in April 2010.
- Peary Caribou (Banks Island population)
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split to allow designation of three separate populations in 1991: Banks Island, High Arctic and Low Arctic populations. The Banks Island population was designated Endangered in April 1991. In May 2004 all three population designations were de-activated, and the Peary Caribou, Rangifer tarandus pearyi, was assessed separately from the Dolphin and Union Caribou, Rangifer tarandus. The former Banks Island population is contained within the subspecies pearyi.
- Peary Caribou (High Arctic population)
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split to allow designation of three separate populations in 1991: Banks Island, High Arctic and Low Arctic populations. The High Arctic population of the Peary Caribou was designated Endangered in April 1991. In May 2004 all three population designations were de-activated, and the Peary Caribou, Rangifer tarandus pearyi, was assessed separately from the Dolphin and Union Caribou, Rangifer tarandus. The former High Arctic population is contained within the subspecies pearyi.
- Peary Caribou (Low Arctic population)
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split to allow designation of three separate populations in 1991: Banks Island, High Arctic and Low Arctic populations. The Low Arctic population was designated Threatened in April 1991. In May 2004 all three population designations were de-activated, and the Peary Caribou, Rangifer tarandus pearyi, was assessed separately from the Dolphin and Union Caribou, Rangifer tarandus. The former Low Arctic population is contained partly within the subspecies pearyi and partly within the Dolphin and Union Caribou.
- Peary Caribou (original designation)
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split into three separate populations in April 1991: Banks Island, High Arctic and Low Arctic populations. The original designation was de-activated. In May 2004 all three population designations were de-activated, and the Peary Caribou, Rangifer tarandus pearyi, was assessed separately from the Dolphin and Union Caribou, Rangifer tarandus.
- Peary Caribou
- The original designation considered a single unit that included Peary Caribou, Rangifer tarandus pearyi, and what is now known as the Dolphin and Union Caribou, Rangifer tarandus. It was assigned a status of Threatened in April 1979. Split to allow designation of three separate populations in 1991: Banks Island (Endangered), High Arctic (Endangered) and Low Arctic (Threatened) populations. In May 2004 all three population designations were de-activated, and the Peary Caribou was assessed separately from the Dolphin and Union Caribou, Rangifer tarandus. The subspecies pearyi is composed of a portion of the former "Low Arctic population", and all of the former "High Arctic" and "Banks Island" populations, and it was designated Endangered in May 2004. Status re-examined and designated Threatened in November 2015.
- Peregrine Falcon anatum subspecies
- The Peregrine Falcon in Canada was originally assessed by COSEWIC as three separate subspecies: anatum subspecies (Endangered in April 1978, Threatened in April 1999 and in May 2000), tundrius subspecies (Threatened in April 1978 and Special Concern in April 1992) and pealei subspecies (Special Concern in April 1978, April 1999 and November 2001). In April 2007, the Peregrine Falcon in Canada was assessed as two separate units: pealei subspecies and anatum/tundrius. The original Peregrine Falcon anatum subspecies designation was de-activated in April 2007.
- Peregrine Falcon anatum/tundrius
- The Peregrine Falcon in Canada was originally evaluated by COSEWIC as three separate subspecies: anatum subspecies (Endangered in April 1978, Threatened in April 1999 and in May 2000), tundrius subspecies (Threatened in April 1978 and Special Concern in April 1992) and pealei subspecies (Special Concern in April 1978, April 1999 and November 2001). In April 2007, the Peregrine Falcon in Canada was assessed as two separate units: pealei subspecies and anatum/tundrius. Peregrine Falcon anatum/tundrius was designated Special Concern in April 2007. Status re-examined and designated Not at Risk in November 2017.
- Peregrine Falcon pealei subspecies
- The Peregrine Falcon in Canada was originally evaluated by COSEWIC as three separate subspecies: anatum subspecies (Endangered in April 1978, Threatened in April 1999 and in May 2000), tundrius subspecies (Threatened in April 1978 and Special Concern in April 1992) and pealei subspecies (Special Concern in April 1978, April 1999 and November 2001). In April 2007, the Peregrine Falcon in Canada was assessed as two separate units: pealei subspecies and anatum/tundrius. The Peregrine Falcon pealei subspecies was designated Special Concern in April 2007 and November 2017.
- Peregrine Falcon tundrius subspecies
- The Peregrine Falcon in Canada was originally evaluated by COSEWIC as three separate subspecies: anatum subspecies (Endangered in April 1978, Threatened in April 1999 and in May 2000), tundrius subspecies (Threatened in April 1978 and Special Concern in April 1992) and pealei subspecies (Special Concern in April 1978, April 1999 and November 2001). In April 2007, the Peregrine Falcon in Canada was assessed as two separate units: pealei subspecies and anatum/tundrius. The original Peregrine Falcon tundrius subspecies designation was de-activated in April 2007.
- Phantom Orchid
- Designated Special Concern in April 1992. Status re-examined and designated Threatened in May 2000. Status re-examined and designated Endangered in November 2014.
- Pink Coreopsis
- Designated Endangered in April 1984. Status re-examined and confirmed Endangered in April 1999, May 2000, and November 2012.
- Pink Milkwort
- Designated Endangered in April 1984. Status re-examined and confirmed Endangered in April 1998, May 2000, and November 2009.
- Pink-footed Shearwater
- Designated Threatened in May 2004. Status re-examined and designated Endangered in November 2016.
- Piping Plover
- The species was considered a single unit and designated Threatened in April 1978. Status re-examined and designated Endangered in April 1985. In May 2001, the species was re-examined and split into two groups according to subspecies. The melodus subspecies and circumcinctus subspecies were each designated Endangered in May 2001. The original designation was de-activated.
- Piping Plover circumcinctus subspecies
- The species was considered a single unit and designated Threatened in April 1978. Status re-examined and designated Endangered in April 1985. In May 2001, the species was re-examined and split into two groups according to subspecies. The circumcinctus subspecies was designated Endangered in May 2001.Status re-examined and confirmed in November 2013.
- Piping Plover melodus subspecies
- The species was considered a single unit and designated Threatened in April 1978. Status re-examined and designated Endangered in April 1985. In May 2001, the species was re-examined and split into two groups according to subspecies. The melodus subspecies was designated Endangered in May 2001 and November 2013.
- Pitcher's Thistle
- Designated Threatened in April 1988. Status re-examined and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in November 2010.
- Pixie Poacher
- Species considered in April 1991 and placed in the Data Deficient category. Re-examined and designation de-activated in November 2001.
- Plains Bison
- Designated Threatened in May 2004. Status re-examined and confirmed in November 2013.
- Plains Pocket Gopher
- Designated Special Concern in April 1979. Status re-examined and designated Not at Risk in April 1998.
- Plains Sucker (Missouri population)
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, the species formerly considered Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi). The original 2010 "Milk River populations" unit of Mountain Sucker is now known as Plains Sucker, Missouri population, and was designated Threatened in December 2022.
- Plains Sucker (Saskatchewan-Nelson population)
- The Mountain Sucker (Catostomus platyrhynchus) was originally assessed by COSEWIC as a single unit and designated Not at Risk in April 1991. Split into three populations in November 2010: "Milk River populations" unit (Threatened), "Pacific populations" unit (Special Concern), and "Saskatchewan - Nelson River populations" unit (Not at Risk). In December 2022, the species formerly considered Mountain Sucker was split into two separate species, Plains Sucker (Pantosteus jordani) (2 populations) and Cordilleran Sucker (Pantosteus bondi). The original 2010 "Saskatchewan - Nelson River populations" unit of Mountain Sucker is now known as Plains Sucker, Saskatchewan-Nelson population, and was designated Special Concern in December 2022.
- Plymouth Gentian
- Designated Threatened in April 1984. Status re-examined and confirmed in April 1999 and May 2000. Status re-examined and designated Endangered in November 2012.
- Polar Bear
- Designated Not at Risk in April 1986. Status re-examined and designated Special Concern in April 1991. Status re-examined and confirmed in April 1999, November 2002, April 2008, and November 2018.
- Poor Pocket Moss
- Designated Endangered in November 2001. Status re-examined and confirmed in May 2011 and December 2022.
- Porbeagle
- Designated Endangered in May 2004. Status re-examined and confirmed in May 2014.
- Porsild's Bryum
- Designated Threatened in November 2003. Status re-examined and confirmed in November 2017.
- Poweshiek Skipperling
- Designated Threatened in November 2003. Status re-examined and designated Endangered in November 2014.
- Prairie Falcon
- Designated Not at Risk in April 1978, April 1982 and April 1996.
- Prairie Long-tailed Weasel
- Designated Threatened in April 1982. Status re-examined and designated Not at Risk in April 1993.
- Prairie Lupine
- Designated Endangered in April 1996. Status re-examined and confirmed in May 2000 and in April 2009.
- Prairie Skink
- Designated Special Concern in April 1989. Status re-examined and designated Endangered in May 2004. Status re-examined and designated Special Concern in November 2017.
- Prairie Warbler
- Designated Special Concern in April 1985. Status re-examined and designated Not at Risk in April 1999.
- Prothonotary Warbler
- Designated Special Concern in April 1984. Status re-examined and designated Endangered in April 1996. Status re-examined and confirmed in May 2000, April 2007, and November 2016.
- Provancher's Fleabane
- Designated Special Concern in April 1992. Species considered in May 2023 and placed in the Data Deficient category.
- Puget Oregonian
- Designated Extirpated in November 2002. Status re-examined and confirmed in May 2013.
- Pugnose Minnow
- Designated Special Concern in April 1985. Status re-examined and confirmed in May 2000. Status re-examined and designated Threatened in May 2012.
- Pugnose Shiner
- Designated Special Concern in April 1985. Status re-examined and designated Endangered in November 2002. Status re-examined and designated Threatened in May 2013.
- Purple Spikerush
- Designated Endangered in April 2007. De-activated in April 2008 in recognition of new information regarding the incorrect identification of plants at the single locality at Osoyoos Lake that are in fact those of Bent Spike-rush (Eleocharis geniculata).
- Purple Twayblade
- Designated Threatened in April 1989. Status re-examined and designated Endangered in April 1999 and in May 2001. Status re-examined and designated Threatened in November 2010.
- Pygmy Pocket Moss
- Designated Special Concern in May 2005. Status re-examined and designated Not at Risk in April 2016.
- Pygmy Short-horned Lizard
- Last reported in 1957. Designated Extirpated in April 1992. Status re–examined and confirmed in May 2000, April 2007, and November 2018.
- Pygmy Snaketail
- Designated Special Concern in November 2008. Status re-examined and confirmed in November 2018.
- Queensnake
- Designated Threatened in April 1999. Status re-examined and confirmed in May 2000. Status re-examined and designated Endangered in April 2010.
- Rainbow
- Designated Endangered in April 2006. Status re-examined and designated Special Concern in November 2015.
- Rainbow Smelt (Lake Utopia large-bodied population)
- Designated Threatened in November 2008. Status re-examined and designated Endangered in November 2018.
- Rainbow Smelt (Lake Utopia small-bodied population)
- Designated Threatened in April 1998. Status re-examined and confirmed in May 2000 and November 2008. Status re-examined and designated Endangered in November 2018.
- Rapids Clubtail
- Designated Endangered in April 2008. Status re–examined and confirmed in November 2018.
- Rayed Bean
- Designated Endangered in April 1999. Status re-examined and confirmed in May 2000 and April 2010.
- Red Crossbill percna subspecies
- Designated Endangered in May 2004. Status re-examined and designated Threatened April 2016.
- Red Knot islandica subspecies
- Designated Special Concern in April 2007. Status re-examined and designated Not at Risk in November 2020.
- Red Knot roselaari subspecies
- The species 'roselaari type' was considered a single unit (which included three groups) and designated Threatened in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the ‘roselaari type’ were transferred to the rufa subspecies (Northeastern South America wintering population, Southeastern USA / Gulf of Mexico / Caribbean wintering population). The remaining unit now includes only the roselaari subspecies. The roselaari subspecies was designated Threatened in November 2020.
- Red Knot roselaari type
- The species 'roselaari type' was considered a single unit (which included three groups) and designated Threatened in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the ‘roselaari type’ were transferred to the rufa subspecies (Northeastern South America wintering population, Southeastern USA / Gulf of Mexico / Caribbean wintering population).The remaining unit includes only those birds now considered part of the roselaari subspecies. The original designation of 'roselaari type' was de-activated in November 2020.
- Red Knot rufa subspecies (Northeastern South America wintering population)
- The species 'roselaari type' was considered a single unit (which included three groups) and designated Threatened in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the 'roselaari type' were transferred to the rufa subspecies. The Northeastern South America wintering population of the rufa subspecies was designated Special Concern in November 2020.
- Red Knot rufa subspecies (Southeastern USA / Gulf of Mexico / Caribbean wintering population)
- The species 'roselaari type' was considered a single unit (which included three groups) and designated Threatened in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the 'roselaari type' were transferred to the rufa subspecies. The Southeastern USA / Gulf of Mexico / Caribbean wintering population of the rufa subspecies was designated Endangered in November 2020.
- Red Knot rufa subspecies (Tierra del Fuego / Patagonia wintering population)
- The rufa subspecies was considered a single unit (consisting solely of southern wintering birds from Tierra del Fuego/Patagonia) and designated Endangered in April 2007. Based on the Designatable Unit report on Red Knot (COSEWIC 2019), a new population structure was proposed and accepted by COSEWIC; two groups previously assessed under the 'roselaari type' were transferred to the rufa subspecies (Northeastern South America wintering population, Southeastern USA / Gulf of Mexico / Caribbean wintering population). The Tierra del Fuego/Patagonia wintering population of the rufa subspecies was designated Endangered in November 2020.
- Red Mulberry
- Designated Threatened in April 1987. Status re-examined and designated Endangered in April 1999. Status re-examined and confirmed in May 2000 and November 2014.
- Red-headed Woodpecker
- Designated Special Concern in April 1996. Status re-examined and designated Threatened in April 2007. Status re-examined and designated Endangered in April 2018.
- Red-shouldered Hawk
- Designated Special Concern in April 1983. Status re-examined and confirmed in April 1996. Status re-examined and designated Not at Risk in April 2006.
- Redbreast Sunfish
- Designated Special Concern in April 1989. Species considered in April 2008 and placed in the Data Deficient category.
- Redroot
- Designated Threatened in April 1994. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in November 2009.
- Redside Dace
- Designated Special Concern in April 1987. Status re-examined and designated Endangered in April 2007 and November 2017.
- Right Whale
- The Right Whale was considered a single species and designated Endangered in 1980. Status re-examined and confirmed in April 1985 and in April 1990. Split into two species in May 2003 (North Atlantic Right Whale and North Pacific Right Whale). The status of the North Atlantic Right Whale was re-examined in May 2003 and the status of the North Pacific Right Whale was re-examined in November 2004. The original designation was de-activated in May 2003.
- Rigid Apple Moss
- Designated Threatened in April 1997. Status re-examined and designated Endangered in May 2000 and November 2009.
- Ringed Seal
- Designated Not at Risk in April 1989. Status re-examined and designated Special Concern in November 2019.
- River Darter (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Not at Risk in April 1989. When the species was split into three separate units in April 2016, the "Great Lakes - Upper St. Lawrence populations" unit was designated Endangered.
- River Darter (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Not at Risk in April 1989. When the species was split into three separate units in April 2016, the "Saskatchewan - Nelson River populations" unit was designated Not at Risk.
- River Darter (Southern Hudson Bay - James Bay populations)
- The species was considered a single unit and designated Not at Risk in April 1989. When the species was split into three separate units in April 2016, the "Southern Hudson Bay - James Bay populations" unit was designated Not at Risk.
- River Darter
- The species was considered a single unit and designated Not at Risk in April 1989. Split into three separate units in April 2016. The original designation was de-activated.
- River Redhorse
- Designated Special Concern in April 1983. Status re-examined and confirmed in April 1987, April 2006, and November 2015.
- Riverine Clubtail (Boreal population)
- Species considered in November 2012 and placed in the Data Deficient category. In May 2023, the Boreal, Prairie, and Great Lakes Plains populations were considered as a single unit across the Canadian range and was designated Special Concern. The original Boreal population designation was de-activated.
- Riverine Clubtail (Great Lakes Plains population)
- Designated Endangered in November 2012. In May 2023, the Boreal, Prairie, and Great Lakes Plains populations were considered as a single unit across the Canadian range and was designated Special Concern. The original Great Lakes Plains population designation was de-activated.
- Riverine Clubtail (Prairie population)
- Species considered in November 2012 and placed in the Data Deficient category. In May 2023, the Boreal, Prairie, and Great Lakes Plains populations were considered as a single unit across the Canadian range and was designated Special Concern. The original Prairie population designation was de-activated.
- Riverine Clubtail
- In May 2023, the Boreal, Prairie, and Great Lakes Plains populations were considered as a single unit across the Canadian range and was designated Special Concern.
- Rocky Mountain Ridged Mussel
- Designated Special Concern in November 2003. Status re-examined and designated Endangered in November 2010.
- Rocky Mountain Sculpin (Eastslope populations)
- The species was considered a single unit and designated Threatened in May 2005. Split into two population units (Saskatchewan - Nelson River populations and Missouri River populations) in November 2019. The original designation was de–activated.
- Rocky Mountain Sculpin (Missouri River populations)
- The species was considered a single population unit (Eastslope populations) and designated Threatened in November 2005. When the species was split into separate units in November 2019, the "Missouri River populations" unit was designated Threatened.
- Rocky Mountain Sculpin (Pacific populations)
- Designated Special Concern in April 2010. Population name changed to Pacific populations in November 2019; status re–examined and confirmed as Special Concern.
- Rocky Mountain Sculpin (Saskatchewan - Nelson River populations)
- The species was considered a single population unit (Eastslope populations) and designated Threatened in November 2005. When the species was split into separate units in November 2019, the "Saskatchewan - Nelson River populations" unit was designated Threatened.
- Rocky Mountain Tailed Frog
- Designated Endangered in May 2000. Status re-examined and designated Threatened in November 2013.
- Roseate Tern
- Designated Threatened in April 1986. Status re-examined and designated Endangered in April 1999. Status re-examined and confirmed in October 1999, April 2009, and May 2023.
- Ross's Gull
- Designated Special Concern in April 1981. Status re-examined and confirmed in April 1996. Status re-examined and designated Threatened in November 2001 and in April 2007. Status re-examined and designated Endangered in May 2021.
- Roughhead Grenadier
- Designated Special Concern in April 2007. Status re-examined and designated Not at Risk in November 2018.
- Round Hickorynut
- Designated Endangered in May 2003. Status re-examined and confirmed in May 2013.
- Round Pigtoe
- Designated Endangered in May 2004. Status re-examined and confirmed in May 2014.
- Round-leaved Greenbrier (Great Lakes Plains population)
- Designated Threatened in April 1994. Status re-examined and confirmed in May 2001 and November 2007.
- Rusty Blackbird
- Designated Special Concern in April 2006. Status re-examined and confirmed in April 2017.
- Rusty Cord-moss
- Designated Endangered in November 2004. Status re-examined and designated Special Concern in April 2017.
- Rusty-patched Bumble Bee
- Designated Endangered in April 2010. Status re-examined and confirmed in December 2022.
- Sage Thrasher
- Designated Endangered in April 1992. Status re-examined and confirmed in November 2000, November 2010, and December 2021.
- Salamander Mussel
- Designated Endangered in May 2001. Status re-examined and confirmed in May 2011.
- Salish Sucker
- Designated Endangered in April 1986. Status re-examined and confirmed in November 2002. Status re-examined and designated Threatened in November 2012.
- Sand-dune Short-capsuled Willow
- Designated Special Concern in May 2000. Status re-examined and confirmed in April 2018.
- Sand-verbena Moth
- Designated Endangered in November 2003. Status re-examined and confirmed in November 2013.
- Savannah Sparrow princeps subspecies
- Designated Special Concern in April 1979. Status re-examined and confirmed in May 2000, November 2009, and May 2023.
- Scarlet Ammannia
- Designated Endangered in April 1999. Status re-examined and confirmed in May 2001.
- Scouler's Corydalis
- Designated Threatened in May 2001. Status re-examined and designated Not at Risk in November 2006.
- Sea Mink
- Believed Extinct since 1894. Designated Extinct in April 1986. Status re-examined and confirmed in May 2000.
- Sea Otter
- Designated Endangered in April 1978. Status re-examined and confirmed Endangered in April 1986. Status re-examined and designated Threatened in April 1996 and in May 2000. Status re-examined and designated Special Concern in April 2007. Status re-examined and confirmed in May 2022.
- Seaside Birds-foot Lotus
- Designated Endangered in April 1996. Status re-examined and confirmed in May 2000 and November 2010.
- Seaside Bone Lichen
- Designated Special Concern in April 1996. Status re-examined and designated Threatened in April 2008. Status re-examined and designated Not at Risk in May 2022.
- Seaside Centipede Lichen
- Designated Endangered in April 1996. Status re-examined and confirmed in May 2000 and in April 2006. Status re-examined and designated Threatened in May 2021.
- Sei Whale (Atlantic population)
- Species considered in May 2003 and placed in the Data Deficient category. Re-examined in May 2019 and designated Endangered.
- Sei Whale (Pacific population)
- Designated Endangered in May 2003. Status re-examined and confirmed in May 2013.
- Sharp-shinned Hawk
- Designated Not at Risk in April 1986 and in April 1997.
- Sharp-tailed Snake (Coast Mountains population)
- The species was considered a single unit and designated Endangered in November 2009. Split into two populations in December 2021. The Coast Mountains population was designated Endangered in December 2021.
- Sharp-tailed Snake (Pacific Coast population)
- The species was considered a single unit and designated Endangered in November 2009. Split into two populations in December 2021. The Pacific Coast population was designated Threatened in December 2021.
- Sharp-tailed Snake
- Designated Endangered in April 1999. Status re-examined and confirmed in October 1999 and November 2009. Split into two populations in December 2021 (Pacific Coast population and Coast Mountains population). The original designation was de-activated.
- Short-eared Owl
- Designated Special Concern in April 1994 and April 2008. Status re-examined and designated Threatened in May 2021.
- Short-tailed Albatross
- Designated Threatened in November 2003. Status re-examined and confirmed in November 2013.
- Shortfin Mako (Atlantic population)
- Designated Threatened in April 2006. Status re-examined and designated Special Concern in April 2017. Status re-examined and designated Endangered in May 2019.
- Shorthead Sculpin
- Designated Threatened in April 1984. Status re-examined and confirmed Threatened in May 2001. Status re-examined and designated Special Concern in November 2010.
- Shortjaw Cisco
- Designated Threatened in April 1987. Status re-examined and confirmed in May 2003.
- Shortnose Cisco
- Designated Threatened in April 1987. Status re-examined and designated Endangered in May 2005. Status re-examined and confirmed in April 2017.
- Shortnose Sturgeon
- Designated Special Concern in April 1980. Status re-examined and confirmed in May 2005 and in May 2015.
- Showy Goldenrod (Boreal population)
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations in November 2010. The Boreal population was designated Threatened in November 2010.
- Showy Goldenrod (Great Lakes Plains population)
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations in November 2010. The Great Lakes Plains population was designated Endangered in November 2010.
- Showy Goldenrod
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations in November 2010. The original designation was de-activated.
- Shumard Oak
- Designated Special Concern in April 1984. Status re-examined and confirmed in April 1999.
- Silver Chub (Great Lakes - Upper St. Lawrence populations)
- The species was considered a single unit and designated Special Concern in April 1985. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The "Great Lakes - Upper St. Lawrence populations" unit was designated Endangered in May 2012.
- Silver Chub (Saskatchewan - Nelson River populations)
- The species was considered a single unit and designated Special Concern in April 1985. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The "Saskatchewan - Nelson River populations" unit was designated Not at Risk in May 2012.
- Silver Chub
- The species was considered a single unit and designated Special Concern in April 1985. Status re-examined and confirmed in May 2001. Split into two populations in May 2012. The original designation was de-activated.
- Silver Hair Moss
- Designated Endangered in November 2002. Status re-examined and confirmed in May 2012.
- Silver Lamprey (Great Lakes - Upper St. Lawrence populations)
- Designated Special Concern in May 2011. Status re-examined and confirmed in November 2020.
- Silver Lamprey (Saskatchewan - Nelson River populations)
- Species considered in May 2011 and placed in the Data Deficient category. Status re-examined and designated Special Concern in November 2020.
- Silver Shiner
- Designated Special Concern in April 1983. Status re-examined and confirmed in April 1987. Status re-examined and designated Threatened in May 2011.
- Skillet Clubtail
- Designated Endangered in November 2010. Status re-examined and designated Special Concern in May 2022.
- Skinner's Agalinis
- Designated Endangered in April 1988. Status re-examined and confirmed Endangered in April 1999, May 2000, and November 2010.
- Slender Bush-clover
- Designated Endangered in April 1986. Status re-examined and confirmed Endangered in April 1999, May 2000, and May 2013.
- Slender Mouse-ear-cress
- Designated Endangered in April 1992. Status re-examined and designated Threatened in May 2000. Status re-examined and confirmed in December 2022.
- Small White Lady's-slipper
- Designated Endangered in April 1981. Status re-examined and confirmed in April 1999 and in May 2000. Status re-examined and designated Threatened in November 2014.
- Small Whorled Pogonia
- Designated Endangered in April 1982. Status re-examined and confirmed in April 1998, May 2000, and May 2011.
- Small-flowered Lipocarpha
- Designated Threatened in April 1992. Status re-examined and designated Endangered in November 2002.
- Small-flowered Sand-verbena
- Designated Threatened in April 1992. Re-examined and designated Endangered in November 2002. Status re-examined and designated Special Concern in December 2022.
- Small-mouthed Salamander
- Designated Special Concern in April 1991. Status re-examined and designated Endangered in May 2004 and May 2014.
- Smooth Goosefoot
- Designated Special Concern in April 1992. Status re-examined and designated Threatened in April 2006.
- Snuffbox
- Designated Endangered in May 2001. Status re-examined and confirmed in November 2011.
- Soapweed
- Designated Special Concern in April 1985. Status re-examined and designated Threatened in May 2000 and May 2013.
- Sockeye Salmon (Cultus-L population)
- Designated Endangered in an emergency assessment in October 2002. Status re-examined and confirmed in May 2003 and November 2017.
- Sockeye Salmon (Sakinaw population)
- Designated Endangered in an emergency assessment on 20 October 2002. Status re-examined and confirmed in May 2003. Status re-examined in an emergency reassessment on 20 April 2006 and confirmed Endangered. Status re-examined and confirmed in April 2016.
- Sonora Skipper
- Designated Special Concern in April 2006. Status re-examined and designated Not at Risk in November 2016.
- Southern Flying Squirrel (Atlantic (Nova Scotia) population)
- Designated Special Concern in April 1988. Split into two populations in April 2006 and the Atlantic (Nova Scotia) population was designated Not at Risk.
- Southern Flying Squirrel (Great Lakes Plains population)
- Designated Special Concern in April 1988. Split into two populations in April 2006 and the Great Lakes Plains population was designated Not at Risk.
- Southern Flying Squirrel
- Designated Special Concern in April 1988. Split into two populations in April 2006. The original designation was de-activated.
- Southern Maidenhair Fern
- Designated Endangered in April 1984. Status re-examined and confirmed in April 1998, May 2000, and May 2011.
- Sowerby's Beaked Whale
- Designated Special Concern in April 1989 and in November 2006. Status re-examined and confirmed in May 2019.
- Speckled Dace
- Designated Special Concern in April 1980. Status re-examined and designated Endangered in November 2002, April 2006, and in November 2016.
- Spiked Saxifrage
- Designated Threatened in May 2013. Status re-examined and designated Special Concern in May 2015.
- Spiny Softshell
- Designated Threatened in April 1991. Status re-examined and confirmed in May 2002. Status re-examined and designated Endangered in April 2016.
- Spoon-leaved Moss
- Designated Endangered in May 2003. Status re-examined and designated Threatened in November 2017.
- Spotted Bat
- Designated Special Concern in April 1988. Status re-examined and confirmed in May 2004 and November 2014.
- Spotted Gar
- Designated Special Concern in April 1983. Status re-examined and confirmed in April 1994. Status re-examined and designated Threatened in November 2000 and in May 2005. Status re-examined and designated Endangered in November 2015.
- Spotted Owl caurina subspecies
- Designated Endangered in April 1986. Status re-examined and confirmed in April 1999, May 2000, and April 2008.
- Spotted Sucker
- Designated Special Concern in April 1983. Status re-examined and confirmed in April 1994, November 2001, May 2005, and November 2014.
- Spotted Turtle
- Designated Special Concern in April 1991. Status re-examined and designated Endangered in May 2004 and November 2014.
- Spotted Wintergreen
- Designated Endangered in April 1987. Status re-examined and confirmed Endangered in April 1998 and in May 2000. Status re-examined and designated Threatened in April 2017.
- Spotted Wolffish
- Designated Threatened in May 2001. Status re-examined and confirmed in November 2012.
- Sprague's Pipit
- Designated Threatened in April 1999. Status re-examined and confirmed in May 2000 and April 2010.
- Spring Blue-eyed Mary
- No site records since 1954. Designated Extirpated in April 1987. Status re-examined and confirmed in May 2000 and December 2022.
- Spring Cisco
- Designated Special Concern in April 1992. Status re-examined and designated Endangered in April 2009.
- Spring Salamander (Adirondack / Appalachian population)
- The species was considered a single unit and designated Special Concern in April 1999 and May 2002. Split into two populations in May 2011. The Adirondack / Appalachian population was designated Threatened in May 2011.
- Spring Salamander (Carolinian population)
- The species was considered a single unit and designated Special Concern in April 1999 and May 2002. Split into two populations in May 2011. The Carolinian population was designated Extirpated in May 2011. Species considered in April 2018 and placed in the Data Deficient category.
- Spring Salamander
- The species was considered a single unit and designated Special Concern in April 1999 and May 2002. Split into two populations in May 2011. The original designation was de-activated.
- Squanga Whitefish
- Squanga Whitefish (Coregonus sp.) was considered a single unit and designated Special Concern in April 1987. In April 2018, the unit was split into three separate species of European Whitefish, Coregonus lavaretus (Dezadeash Lake small-bodied population, Little Teslin small-bodied population, Squanga Lake small-bodied population), and each received separate designations. The original Squanga Whitefish designation was de-activated.
- Steelhead Trout (Chilcotin River population)
- Designated Endangered in an emergency assessment conducted on January 10, 2018. Status re-examined and confirmed in November 2020.
- Steelhead Trout (Thompson River population)
- Designated Endangered in an emergency assessment conducted on January 10, 2018. Status re-examined and confirmed in November 2020.
- Steller Sea Lion
- Designated Not at Risk in April 1987. Status re-examined and designated Special Concern in November 2003 and November 2013.
- Streaked Horned Lark
- Designated Endangered in November 2003. Status re-examined and confirmed in April 2018.
- Striped Bass (Bay of Fundy population)
- Designated Threatened in November 2004. Status re-examined and designated Endangered in November 2012.
- Striped Bass (Southern Gulf of St. Lawrence population)
- Designated Threatened in November 2004. Status re-examined and designated Special Concern in November 2012.
- Striped Bass (St. Lawrence River population)
- Designated Extirpated in November 2004. Status re-examined and designated Endangered in November 2012. Status re-examined and designated Extinct in November 2019.
- Swamp Rose-mallow
- Designated Special Concern in April 1987. Status re-examined and confirmed in November 2004.
- Sweet Pepperbush
- Designated Threatened in April 1986. Status re-examined and confirmed in April 1998. Status re-examined and designated Special Concern in May 2001. Status re-examined and designated Threatened in May 2014.
- Swift Fox
- Last seen in Saskatchewan in 1928. Designated Extirpated in April 1978. Status re-examined and designated Endangered in April 1998 after successful re-introductions. Status re-examined and confirmed in May 2000. Status re-examined and designated Threatened in November 2009. Status re-examined and confirmed in May 2021.
- Tall Bugbane
- Designated Endangered in May 2001. Status re-examined and confirmed in April 2018.
- Tall Woolly-heads (Prairie population)
- Designated Special Concern in May 2001. De-activated in April 2006 in recognition of new information that some prairie specimens formerly included within the Tall Woolly-heads designation are in fact those of Dwarf Woolly-heads (Psilocarphus brevissimus).
- Tall Woolly-heads
- Designated Endangered in May 2001. Status re-examined and confirmed in April 2018.
- Taylor's Checkerspot
- Designated Endangered in November 2000 and in May 2011.
- Thread-leaved Sundew
- Designated Endangered in April 1991. Status re-examined and confirmed in May 2001.
- Threaded Vertigo
- Designated Special Concern in April 2010. Status re-examined and confirmed in May 2022.
- Tiger Salamander (Great Lakes population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations : Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with different populations that received separate designations. The original Tiger Salamander population designations were de-activated.
- Tiger Salamander (Prairie / Boreal population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations : Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with different populations that received separate designations. The original Tiger Salamander population designations were de-activated.
- Tiger Salamander (Southern Mountain population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations : Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with different populations that received separate designations. The original Tiger Salamander population designations were de-activated.
- Timber Rattlesnake
- Designated Extirpated in May 2001. Status re-examined and confirmed in November 2010 and May 2023.
- Tiny Cryptantha
- Designated Endangered in April 1998. Status re-examined and confirmed in May 2000. Status re-examined and designated Threatened in May 2012.
- Toothcup (Great Lakes Plains population)
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations in November 2014. The Great Lakes Plains population was designated Threatened in November 2014.
- Toothcup (Southern Mountain population)
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations in November 2014. The Southern Mountain population was designated Endangered in November 2014.
- Toothcup
- The species was considered a single unit and designated Endangered in April 1999. Status re-examined and confirmed in May 2000. Split into two populations (Great Lakes Plains and Southern Mountain) in November 2014. The original designation was de-activated.
- Tope
- Designated Special Concern in April 2007. Status re-examined and confirmed in May 2021.
- Townsend's Mole
- Designated Threatened in April 1996. Status re-examined and designated Endangered in May 2003 and November 2014.
- Tri-colored Bat
- Designated Endangered in an emergency assessment on February 3, 2012. Status re-examined and confirmed in November 2013.
- Trumpeter Swan
- Designated Special Concern in April 1978. Status re-examined and designated Not at Risk in April 1996.
- Tubercled Spike-rush
- Designated Threatened in May 2000. Status re-examined and designated Special Concern in April 2010.
- Tuberous Indian-plantain
- Designated Special Concern in April 1988. Status re-examined and confirmed in April 1999 and in May 2002.
- Turnor's Willow
- Designated Special Concern in May 2000. Status re-examined and confirmed in April 2018.
- Twisted Oak Moss
- Designated Special Concern in May 2004. Status re-examined and confirmed in November 2014.
- Tyrrell's Willow
- Designated Threatened in April 1981. Status re-examined and designated Not at Risk in April 1999.
- Umatilla Dace
- Designated Special Concern in April 1988. Status re-examined and designated Threatened in April 2010.
- Unarmoured Threespine Stickleback
- Designated Special Concern in April 1983. Status re-examined and confirmed in November 2013.
- Upper Great Lakes Kiyi
- The Kiyi was designated Special Concern in April 1988. Split into two subspecies in May 2005 (Upper Great Lakes Kiyi and Lake Ontario Kiyi). The Upper Great Lakes Kiyi was designated Special Concern in May 2005.
- Van Brunt's Jacob's-ladder
- Designated Threatened in April 1994. Status re-examined and confirmed in November 2002.
- Vananda Creek Benthic Threespine Stickleback
- Designated Threatened in April 1999. Status re-examined and designated Endangered in May 2000. Status re-examined and confirmed in April 2010.
- Vananda Creek Limnetic Threespine Stickleback
- Designated Threatened in April 1999. Status re-examined and designated Endangered in May 2000. Status re-examined and confirmed in April 2010.
- Vancouver Island Marmot
- Designated Endangered in April 1978. Status re-examined and confirmed Endangered in April 1997, May 2000, April 2008, and May 2019.
- Vancouver Lamprey
- Designated Special Concern in April 1986. Status re-examined and confirmed in April 1998. Status re-examined and designated Threatened in November 2000, November 2008, and November 2017.
- Verna's Flower Moth
- Designated Threatened in May 2005. Status re-examined and confirmed in November 2017.
- Victorin's Gentian
- Designated Special Concern in April 1987. Status re-examined and designated Threatened in May 2004. Status re-examined and designated Special Concern in May 2022.
- Victorin's Water-hemlock
- Designated Special Concern in April 1987. Status re-examined and confirmed in May 2004 and May 2022.
- Virginia Goat's-rue
- Designated Threatened in April 1996. Status re-examined and designated Endangered in May 2000 and November 2009.
- Vole Ears Lichen
- Designated Endangered in November 2009. Status re-examined and confirmed in May 2021.
- Warmouth
- Designated Special Concern in April 1994. Status re-examined and confirmed in November 2001 and in May 2005. Status re-examined and designated Endangered in May 2015.
- Warty Jumping-slug
- Designated Special Concern in May 2003. Status re-examined and confirmed in May 2013.
- Water Pennywort
- Designated Endangered in April 1985. Status re-examined and designated Threatened in April 1999. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in May 2014.
- Water-plantain Buttercup
- Designated Endangered in April 1996. Status re-examined and confirmed in May 2000 and in April 2009.
- Wavy-rayed Lampmussel
- Designated Endangered in April 1999. Status re-examined and confirmed in October 1999. Status re-examined and designated Special Concern in April 2010.
- Weidemeyer's Admiral
- Designated Special Concern in May 2000. Status re-examined and confirmed in May 2012.
- Western Blue Flag
- Designated Threatened in April 1990. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in April 2010.
- Western Brook Lamprey (Morrison Creek population)
- Designated Threatened in April 1999. Status re-examined and designated Endangered in May 2000 and in April 2010.
- Western Chorus Frog (Carolinian population)
- The species was considered a single unit and designated Not at Risk in May 2001. Split into two populations in April 2008. The Carolinian population was designated Not at Risk in April 2008.
- Western Chorus Frog (Great Lakes / St. Lawrence - Canadian Shield population)
- The species was considered a single unit and designated Not at Risk in May 2001. Split into two populations in April 2008. The Great Lakes / St. Lawrence - Canadian Shield population was designated Threatened in April 2008.
- Western Chorus Frog
- The species was considered a single unit and designated Not at Risk in May 2001. Split into two populations in April 2008. The original designation was de-activated.
- Western Harvest Mouse dychei subspecies
- Species considered in April 1994 and placed in the Data Deficient category. Re-examined in April 2007 and designated Endangered. Status re-examined and confirmed in November 2019.
- Western Harvest Mouse megalotis subspecies
- Designated Special Concern in April 1994 and in April 2007. Status re-examined and designated Endangered in November 2019.
- Western Painted Turtle (Intermountain - Rocky Mountain population)
- Designated Special Concern in April 2006. Status re-examined and confirmed in November 2016.
- Western Painted Turtle (Pacific Coast population)
- Designated Endangered in April 2006. Status re-examined and designated Threatened in November 2016.
- Western Painted Turtle (Prairie / Western Boreal - Canadian Shield population)
- Designated Not at Risk in April 2006. Status re-examined and confirmed in November 2016.
- Western Prairie Fringed Orchid
- Designated Endangered in April 1993. Status re-examined and confirmed in May 2000 and November 2016.
- Western Rattlesnake
- Designated Threatened in May 2004. Status re-examined and confirmed in May 2015.
- Western Screech-owl
- The species was considered a single unit and placed in the Data Deficient category in April 1995. Re-examined in May 2002 and split into two groups according to subspecies. The kennicottii subspecies was designated Special Concern and the macfarlanei subspecies was designated Threatened in May 2002. The original designation was de-activated.
- Western Screech-owl kennicottii subspecies
- Species considered in April 1995 and placed in the Data Deficient category. It was split according to subspecies in May 2002. The kennicottii subspecies was designated Special Concern in May 2002. Status re-examined and designated Threatened in May 2012.
- Western Screech-owl macfarlanei subspecies
- Species considered in April 1995 and placed in the Data Deficient category. It was split according to subspecies in May 2002. The macfarlanei subspecies was designated Endangered in May 2002. Status re-examined and designated Threatened in May 2012.
- Western Silvery Aster
- Designated Special Concern in 1988. Status re-examined and designated Threatened in May 2000. Status re-examined and confirmed in May 2021.
- Western Silvery Minnow
- Designated Special Concern in April 1997. Status re-examined and designated Threatened in November 2001. Status re-examined and designated Endangered in April 2008. Status re-examined and designated Threatened in November 2017.
- Western Skink
- Designated Special Concern in May 2002. Status re-examined and confirmed in November 2014.
- Western Spiderwort
- Designated Threatened in April 1992. Status re-examined and confirmed in November 2002.
- Western Tiger Salamander (Prairie / Boreal population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations: Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with two different populations that received separate designations. The Prairie / Boreal population of the Western Tiger Salamander was assessed as Special Concern.
- Western Tiger Salamander (Southern Mountain population)
- The Tiger Salamander (Ambystoma tigrinum) was originally assessed by COSEWIC in November 2001 as three separate populations: Great Lakes population (Extirpated), Prairie / Boreal population (Not at Risk), and Southern Mountain population (Endangered). In November 2012, Tiger Salamander was split into two separate species, Eastern Tiger Salamander (Ambystoma tigrinum) and Western Tiger Salamander (Ambystoma mavortium), each with two different populations that received separate designations. The Southern Mountain population of the Western Tiger Salamander was assessed as Endangered.
- Western Toad (Calling population)
- The species was considered a single unit and designated Special Concern in November 2002. Split into two populations in November 2012. The Calling population was designated Special Concern in November 2012.
- Western Toad (Non-calling population)
- The species was considered a single unit and designated Special Concern in November 2002. Split into two populations in November 2012. The Non-calling population was designated Special Concern in November 2012.
- Western Toad
- The species was considered a single unit and designated Special Concern in November 2002. Split into two populations in November 2012. The original designation was de-activated.
- Western Yellow-bellied Racer
- Designated Not at Risk in April 1991. Status re-examined and designated Special Concern in November 2004. Status re-examined and designated Threatened in November 2015.
- Westslope Cutthroat Trout (Pacific populations)
- Designated Special Concern in May 2005. Status re-examined and confirmed in November 2006 and November 2016.
- Westslope Cutthroat Trout (Saskatchewan - Nelson Rivers populations)
- Designated Threatened in May 2005. Status re-examined and confirmed in November 2006 and November 2016.
- White Flower Moth
- Designated Endangered in May 2005. Status re-examined and confirmed in November 2014.
- White Prairie Gentian
- Designated Endangered in April 1991. Status re-examined and confirmed in May 2001 and November 2010.
- White Shark (Atlantic population)
- Designated Endangered in April 2006. Status re-examined and confirmed in May 2021.
- White Sturgeon (Lower Fraser River population)
- The species was considered a single unit and designated Special Concern in April 1990. Status re-examined and designated Endangered in November 2003. Split into four populations in November 2012. The Lower Fraser River population was designated Threatened in November 2012.
- White Sturgeon (Upper Columbia River population)
- The species was considered a single unit and designated Special Concern in April 1990. Status re-examined and designated Endangered in November 2003. Split into four populations in November 2012. The Upper Columbia River population was designated Endangered in November 2012.
- White Sturgeon (Upper Fraser River population)
- The species was considered a single unit and designated Special Concern in April 1990. Status re-examined and designated Endangered in November 2003. Split into four populations in November 2012. The Upper Fraser River population was designated Endangered in November 2012.
- White Sturgeon (Upper Kootenay River population)
- The species was considered a single unit and designated Special Concern in April 1990. Status re-examined and designated Endangered in November 2003. Split into four populations in November 2012. The Upper Kootenay River population was designated Endangered in November 2012.
- White Sturgeon
- The species was considered a single unit and designated Special Concern in April 1990. Status re-examined and designated Endangered in November 2003. Split into four populations in November 2012. The original designation was de-activated.
- White Wood Aster
- Designated Threatened in April 1995. Status re-examined and confirmed in November 2002.
- White-headed Woodpecker
- Designated Threatened in April 1992. Status re-examined and designated Endangered in November 2000, November 2010, and May 2023.
- White-top Aster
- Designated Threatened in April 1996. Status re-examined and confirmed in May 2000. Status re-examined and designated Special Concern in April 2009.
- Whooping Crane
- Designated Endangered in April 1978. Status re-examined and confirmed in November 2000 and in April 2010.
- Wild Hyacinth
- Designated Special Concern in April 1990. Re-examined and designated Threatened in May 2002.
- Williamson's Sapsucker
- Designated Endangered in May 2005. Status re-examined and confirmed in November 2017.
- Willowleaf Aster
- Designated Special Concern in April 1999. Status re-examined and designated Threatened in May 2003.
- Winter Skate (Eastern Scotian Shelf - Newfoundland population)
- The Eastern Scotian Shelf population of Winter Skate was assessed as Threatened in May 2005, and the Northern Gulf - Newfoundland population was assessed as Data Deficient in May 2005. The COSEWIC Guidelines for Recognizing Designatable units (2013) were used to revise the population structure for the 2015 assessment, resulting in new designatable units. The new Eastern Scotian Shelf – Newfoundland population is composed of the former Eastern Scotian Shelf population and parts of the former Northern Gulf - Newfoundland population. The remaining subpopulations of the Northern Gulf - Newfoundland population were assigned to the new Gulf of St. Lawrence population. The Eastern Scotian Shelf – Newfoundland population was designated Endangered in May 2015.
- Winter Skate (Eastern Scotian Shelf population)
- The wildlife species was considered a single unit and designated Threatened in May 2005. Population structure re-examined in May 2015 and this unit, combined with parts of Northern Gulf – Newfoundland population, resulted in the new Eastern Scotian Shelf – Newfoundland population (Endangered, May 2015). The original designation was de-activated.
- Winter Skate (Gulf of St. Lawrence population)
- The Southern Gulf of St. Lawrence population of Winter Skate was assessed as Endangered in May 2005, and the Northern Gulf - Newfoundland population was assessed as Data Deficient in May 2005. The COSEWIC Guidelines for Recognizing Designatable units (2013) were used to revise the population structure for the 2015 assessment, resulting in new designatable units. The new Gulf of St. Lawrence population is composed of the former Southern Gulf of St. Lawrence population and parts of the former Northern Gulf - Newfoundland population. The remaining subpopulations of the Northern Gulf - Newfoundland population were assigned to the new Eastern Scotian Shelf - Newfoundland population. The Gulf of St. Lawrence population was designated Endangered in May 2015.
- Winter Skate (Northern Gulf-Newfoundland population)
- The wildlife species was considered a single unit and designated Data Deficient in May 2005. Population structure re-examined in May 2015, splitting this unit, and parts were combined with other existing populations to create two new populations: the new Gulf of St. Lawrence population (with existing Southern Gulf of St. Lawrence population), and the new Eastern Scotian Shelf- Newfoundland population (with existing Eastern Scotian Shelf population). The original designations were de-activated.
- Winter Skate (Southern Gulf of St. Lawrence population)
- The wildlife species was considered a single unit and designated Endangered in May 2005. Population structure re-examined in May 2015 and this unit, combined with parts of Northern Gulf – Newfoundland population, resulted in the new Gulf of St. Lawrence population (Endangered, May 2015). The original designation was de-activated.
- Winter Skate (Western Scotian Shelf - Georges Bank population)
- Species designated Special Concern in May 2005. Status re-examined and designated Not at Risk in May 2015.
- Wolverine (Eastern population)
- The species was considered a single unit and designated Special Concern in April 1982. Split into two populations in April 1989 (Western and Eastern populations). The Eastern population was designated Endangered in April 1989. Status re-examined and confirmed in May 2003. In May 2014, the Eastern and Western populations were considered as a single unit across the Canadian range and was designated Special Concern. The original Eastern population designation was de-activated.
- Wolverine (Western population)
- The species was considered a single unit and designated Special Concern in April 1982. Split into two populations in April 1989 (Western and Eastern populations). The Western population was designated Special Concern in April 1989. Status re-examined and confirmed in May 2003. In May 2014, the Eastern and Western populations were considered as a single unit across the Canadian range and was designated Special Concern. The original Western population designation was de-activated.
- Wolverine (original designation)
- The species was considered a single unit and designated Special Concern in April 1982. Split into two populations in April 1989 (Western and Eastern populations). The original designation was de-activated. In May 2014, the Eastern and Western populations were considered as a single unit across the Canadian range and was designated Special Concern.
- Wolverine
- The species was considered a single unit and designated Special Concern in April 1982. Split into two populations in April 1989 (Western and Eastern populations). The original designation was de-activated. In May 2014, the Eastern and Western populations were considered as a new single unit across the Canadian range and was designated Special Concern.
- Wood Bison
- Designated Endangered in April 1978. Status re-examined and designated Threatened in April 1988 and May 2000. Status re-examined and designated Special Concern in November 2013.
- Wood Turtle
- Designated Special Concern in April 1996. Status re-examined and designated Threatened in November 2007. Status re-examined and confirmed in November 2018.
- Wood-poppy
- Designated Endangered in April 1993. Status re-examined and confirmed in May 2000 and November 2007.
- Woodland Caribou (Labrador - Ungava population)
- Labrador-Ungava population was designated Not at Risk in April 1984. The designation of the Labrador-Ungava population was de-activated in May 2000. The former Labrador-Ungava population is contained within the Boreal population.
- Woodland Caribou (Northern Mountain population)
- The Northern Mountain population was designated Not at Risk in May 2000. This population was formerly designated as part of the "Western population"(now de-activated). Status re-examined and designated Special Concern in May 2002. Following the Designatable Unit report on caribou (COSEWIC 2011), a new population structure was proposed and accepted by COSEWIC. This new Northern Mountain population is composed of all 36 subpopulations in the previous Northern Mountain population of Woodland Caribou in addition to 9 subpopulations from the previous (2002) Southern Mountain population of Woodland Caribou, and was designated Special Concern in May 2014. The original Northern Mountain population of Woodland Caribou was de-activated.
- Woodland Caribou (Southern Mountain population)
- The Southern Mountain population was designated Threatened in May 2000. This population was formerly designated as part of the "Western population" (now de-activated). Status re-examined and confirmed in May 2002. Following the Designatable Unit report on caribou (COSEWIC 2011), a new population structure was proposed and accepted by COSEWIC. This resulted in the new Southern Mountain population, composed of 17 subpopulations from the former Southern Mountain population of Woodland Caribou (COSEWIC 2002). The remaining subpopulations were assigned to the new Central and Northern Mountain populations.The Southern Mountain population of Caribou was designated Endangered in May 2014. The original Southern Mountain population of Woodland Caribou was de-activated.
- Woodland Caribou (Western population)
- The Western population was designated Special Concern in April 1984. The designation of the Western population was de-activated in May 2000. The former Western population is contained within the following newly designated populations: Northern Mountain, Southern Mountain and Boreal.
- Woodland Vole
- Designated Special Concern in April 1998. Status re-examined and confirmed in November 2001 and November 2010.
- Yellow Lampmussel
- Designated Special Concern in May 2004. Status re-examined and confirmed in November 2013.
- Yellow Montane Violet praemorsa subspecies
- Designated Threatened in April 1995. Status re-examined and confirmed in May 2000. Status re-examined and designated Endangered in November 2007.
- Yellow Rail
- Designated Special Concern in April 1999. Status re-examined and confirmed in November 2001 and in November 2009.
- Yellow-breasted Chat auricollis subspecies (Prairie population)
- The Prairie population of the auricollis subspecies was designated Not at Risk in April 1994, November 2000, and November 2011.
- Yellow-breasted Chat auricollis subspecies (Southern Mountain population)
- The Southern Mountain population of the auricollis subspecies was designated Threatened in April 1994. Status re-examined and designated Endangered in November 2000 and November 2011.
- Yellow-breasted Chat virens subspecies
- Designated Special Concern in April 1994. Status re-examined and confirmed in November 2000. Status re-examined and designated Endangered in November 2011.
- Yelloweye Rockfish (Pacific Ocean inside waters population)
- Designated Special Concern in November 2008. Status re-examined and designated Threatened in November 2020.
- Yelloweye Rockfish (Pacific Ocean outside waters population)
- Designated Special Concern in November 2008. Status re-examined and designated Threatened in November 2020.
- Yucca Moth
- Designated Endangered in May 2002. Status re-examined and confirmed in May 2013.
- Yukon Draba
- Designated Endangered in November 2011. Status re-examined and designated Special Concern in November 2018.
Names previously used by COSEWIC and synonyms
| Previous name(s) or synonym | Current common name or scientific name (population) |
|---|---|
| Abronia micrantha | Tripterocalyx micranthus |
| Acadian Whitefish | Atlantic Whitefish |
| Achikunipi | Harbour Seal Lacs des Loups Marins subspecies |
| Achillea millefolium var. megacephalum | Achillea millefolium var. megacephala |
| Acipenser fulvescens (Great Lakes - Western St. Lawrence populations) | Acipenser fulvescens |
| Acipenser fulvescens (Great Lakes and Western St. Lawrence River populations) | Acipenser fulvescens |
| Acipenser fulvescens (Great Lakes and Western St. Lawrence populations) | Acipenser fulvescens |
| Acipenser fulvescens (Rainy River - Lake of the Woods populations) | Acipenser fulvescens |
| Acipenser fulvescens (Rainy River-Lake of the Woods populations) | Acipenser fulvescens |
| Acipenser fulvescens (Red-Assiniboine rivers - Lake Winnipeg populations) | Acipenser fulvescens |
| Acipenser fulvescens (Southern Hudson Bay and James Bay populations) | Acipenser fulvescens |
| Acipenser oxyrinchus (Great Lakes / St. Lawrence populations) | Acipenser oxyrinchus |
| Acris crepitans | Acris blanchardi |
| Acris crepitans blanchardi | Acris blanchardi |
| Ambystoma laterale – (2) jeffersonianum (Jefferson Salamander dependent population) | Ambystoma laterale - (2) jeffersonianum |
| Ambystoma laterale – texanum (Small-mouthed Salamander dependent population) | Ambystoma laterale - texanum |
| American Hart's-tongue Fern | American Hart's-tongue Fern |
| American Marten (Newfoundland population) | American Marten (Newfoundland population) |
| Ammocrypta pellucida (Ontario populations) | Ammocrypta pellucida |
| Ammocrypta pellucida (Quebec populations) | Ammocrypta pellucida |
| Anatum Peregrine Falcon | Peregrine Falcon anatum subspecies |
| Apple Moss | Rigid Apple Moss |
| Ardea herodias fannini | Ardea herodias fannini |
| Ascaphus truei (Pacific Coast population) | Ascaphus truei |
| Ascaphus truei (Southern Mountain population) | Ascaphus montanus |
| Asplenium scolopendrium | Asplenium scolopendrium var. americanum |
| Asplenium scolopendrium var. americanum | Asplenium scolopendrium var. americanum |
| Aster anticostensis | Symphyotrichum anticostense |
| Aster curtus | Sericocarpus rigidus |
| Aster divaricatus | Eurybia divaricata |
| Aster laurentianus | Symphyotrichum laurentianum |
| Aster praealtus | Symphyotrichum praealtum |
| Aster prenanthoides | Symphyotrichum prenanthoides |
| Aster shortii | Symphyotrichum shortii |
| Aster subulatus var. obtusifolius | Symphyotrichum subulatum |
| Aster yukonensis | Symphyotrichum yukonense |
| Balaena mysticetus (Eastern and Western Arctic Populations) | Balaena mysticetus |
| Balaena mysticetus (Western Arctic population) | Balaena mysticetus |
| Barren-ground Caribou (Dolphin and Union population) | Caribou (Dolphin and Union population) |
| Bartonia paniculata | Bartonia paniculata paniculata |
| Bartramia stricta | Bartramia aprica |
| Bathurst Aster (Bathurst population) | Annual Saltmarsh Aster |
| Behr's (Columbia) Hairstreak | Behr's Hairstreak |
| Benthic Hadley Lake Stickleback | Hadley Lake Benthic Threespine Stickleback |
| Benthic Texada Island Stickleback | Paxton Lake Benthic Threespine Stickleback |
| Black Rat Snake | Gray Ratsnake |
| Black Ratsnake | Gray Ratsnake |
| Black Ratsnake (Carolinian population) | Gray Ratsnake (Carolinian population) |
| Black Ratsnake (Great Lakes / St. Lawrence popu... | Gray Ratsnake (Great Lakes / St. Lawrence population) |
| Blackline Prickleback | Blackline Prickleback |
| Blanchard's Cricket Frog | Blanchard's Cricket Frog |
| Blue Pike | Blue Walleye |
| Blue-eyed Mary | Spring Blue-eyed Mary |
| Blue-grey Taildropper Slug | Blue-grey Taildropper |
| Bombus pennsylvanicus | Bombus pensylvanicus |
| Bottlenose Dolphin | Common Bottlenose Dolphin |
| Bowl Limpet | Eelgrass Limpet |
| Buchloë dactyloides | Bouteloua dactyloides |
| Buffalo | Plains Bison |
| Buffalo | Wood Bison |
| Bufo boreas | Anaxyrus boreas |
| Bufo cognatus | Anaxyrus cognatus |
| Bufo fowleri | Anaxyrus fowleri |
| Bufo woodhousii fowleri | Anaxyrus fowleri |
| Butler’s Garter Snake | Butler's Gartersnake |
| Cacalia plantaginea | Arnoglossum plantagineum |
| Calidris canutus roselaari type | Calidris canutus roselaari type |
| Calidris canutus rufa | Calidris canutus rufa |
| Callophrys [Incisalia] irus | Callophrys irus |
| Canis lupus lycaon | Canis sp. cf. lycaon |
| Canis lycaon | Canis sp. cf. lycaon |
| Caprimulgus vociferus | Antrostomus vociferus |
| Caribou (Northern Mountain population) | Woodland Caribou (Northern Mountain population) |
| Caribou (Southern Mountain population) | Woodland Caribou (Southern Mountain population) |
| Catostomus catostomus | Catostomus sp. cf. catostomus |
| Catostomus catostomus (Chehalis populations) | Catostomus sp. cf. catostomus |
| Catostomus sp. | Catostomus sp. cf. catostomus |
| Centrocercus urophasianus phaios (British Columbia population) | Centrocercus urophasianus phaios |
| Centrocercus urophasianus urophasianus (Prairie population) | Centrocercus urophasianus urophasianus |
| Charlotte Unarmoured Stickleback | Unarmoured Threespine Stickleback |
| Charlotte Unarmoured Sticklebacks | Unarmoured Threespine Stickleback |
| Charlotte Unarmoured Threespine Stickleback | Unarmoured Threespine Stickleback |
| Cimicifuga elata | Actaea elata |
| Clemmys insculpta | Glyptemys insculpta |
| Clemmys marmorata | Actinemys marmorata |
| Coast Manroot | Coastal Manroot |
| Coast Tailed Frog | Coastal Tailed Frog |
| Coenonympha tullia nipisiquit | Coenonympha nipisiquit |
| Coeur d'Alène Salamander | Coeur d'Alene Salamander |
| Columbia Mottled Sculpin | Columbia Sculpin |
| Columbian Quillwort | Columbia Quillwort |
| Common Dolphin | Short-beaked Common Dolphin |
| Common Hop-tree | Common Hoptree |
| Common Watersnake | Northern Watersnake |
| Contia tenuis | Contia tenuis |
| Contia tenuis (Pacific Coast population) | Contia tenuis |
| Coregonus canadensis | Coregonus huntsmani |
| Coregonus clupeaformis | Coregonus clupeaformis |
| Cottus aleuticus (Cultus population) | Cottus aleuticus |
| Cottus bairdi hubbsi | Cottus hubbsi |
| Cottus bairdii hubbsi | Cottus hubbsi |
| Cottus sp. | Cottus aleuticus |
| Cottus sp. (St. Mary and Milk River populations) | Cottus sp. |
| Cottus sp. (Westslope populations) | Cottus sp. |
| Cowichan Lake Lamprey | Vancouver Lamprey |
| Cryptic Paw | Cryptic Paw Lichen |
| Cultus Pygmy Sculpin | Coastrange Sculpin (Cultus Lake population) |
| Cutlips Minnow | Cutlip Minnow |
| Dalea villosa var. villosa | Dalea villosa |
| Darktail Lamprey | Alaskan Brook Lamprey |
| Delphinapterus leucas (Beaufort Sea / Arctic Ocean population) | Delphinapterus leucas |
| Delphinapterus leucas (Southeast Baffin Island-Cumberland Sound population) | Delphinapterus leucas |
| Delphinapterus leucas (St. Lawrence River population) | Delphinapterus leucas |
| Delphinapterus leucas (Western Hudson Bay population) | Delphinapterus leucas |
| Dendroica cerulea | Setophaga cerulea |
| Dendroica discolor | Setophaga discolor |
| Dendroica kirtlandii | Setophaga kirtlandii |
| Desmognathus ochrophaeus | Desmognathus ochrophaeus |
| Desmognathus ochrophaeus (Great Lakes / St. Lawrence population) | Desmognathus ochrophaeus |
| Dolphin and Union Caribou | Caribou (Dolphin and Union population) |
| Draba kananaskis | Draba juvenilis |
| Dun Skipper (Western population) | Dun Skipper vestris subspecies |
| Eastern Fox Snake | Eastern Foxsnake |
| Eastern Grey Wolf | Eastern Wolf |
| Eastern Hognose Snake | Eastern Hog-nosed Snake |
| Eastern Hognosed Snake | Eastern Hog-nosed Snake |
| Eastern Loggerhead Shrike | Loggerhead Shrike migrans subspecies |
| Eastern Massasauga | Massasauga |
| Eastern Massasauga Rattlesnake | Massasauga |
| Eastern Milksnake | Eastern Milksnake |
| Eastern Mud Turtle | Eastern Musk Turtle |
| Eastern Pipistrelle | Tri-colored Bat |
| Eastern Prairie Fringed Orchid | Eastern Prairie Fringed Orchid |
| Eastern Prairie Fringed-orchid | Eastern Prairie Fringed Orchid |
| Eastern Ratsnake | Gray Ratsnake |
| Eastern Ratsnake (Carolinian population) | Gray Ratsnake (Carolinian population) |
| Eastern Ratsnake (Great Lakes / St. Lawrence population) | Gray Ratsnake (Great Lakes / St. Lawrence population) |
| Eastern Screech-Owl | Eastern Screech-owl |
| Eastern Short-horned Lizard | Greater Short-horned Lizard |
| Eastern Spiny Softshell Turtle | Spiny Softshell |
| Eastern Yellow-breasted Chat | Yellow-breasted Chat virens subspecies |
| "Eastslope" Sculpin (St. Mary and Milk River populations) | Rocky Mountain Sculpin (Eastslope populations) |
| Elaphe gloydi | Pantherophis vulpinus |
| Elaphe gloydi (Carolinian population) | Pantherophis vulpinus |
| Elaphe gloydi (Great Lakes / St. Lawrence population) | Pantherophis vulpinus |
| Elaphe obsoleta | Pantherophis spiloides |
| Elaphe obsoleta (Carolinian population) | Pantherophis spiloides |
| Elaphe obsoleta (Great Lakes / St. Lawrence population) | Pantherophis spiloides |
| Elaphe obsoleta obsoleta | Pantherophis spiloides |
| Elaphe spiloides | Pantherophis spiloides |
| Elaphe spiloides (Carolinian population) | Pantherophis spiloides |
| Elaphe spiloides (Great Lakes / St. Lawrence population) | Pantherophis spiloides |
| Elaphe vulpina gloydi | Pantherophis vulpinus |
| Elgaria coerulea principis | Elgaria coerulea |
| Emydoidea blandingi | Emydoidea blandingii |
| Emydoidea blandingii (Great Lakes population) | Emydoidea blandingii |
| Enos Lake Benthic Stickleback | Enos Lake Benthic Threespine Stickleback |
| Enos Lake Limnetic Stickleback | Enos Lake Limnetic Threespine Stickleback |
| Enos Lake Sticklebacks | Enos Lake Threespine Sticklebacks |
| Epeoloides pilosula | Epeoloides pilosulus |
| Epioblasma torulosa | Epioblasma rangiana |
| Epioblasma torulosa rangiana | Epioblasma rangiana |
| Erigeron philadelphicus ssp. provancheri | Erigeron philadelphicus var. provancheri |
| Eriogonum flavum ssp. aquilinum | Eriogonum flavum var. aquilinum |
| Ermine (Queen Charlotte Islands population) | Ermine haidarum subspecies |
| Eschrichtius robustus (Northeast Pacific population) | Eschrichtius robustus |
| Eumeces fasciatus | Plestiodon fasciatus |
| Eumeces fasciatus (Carolinian population) | Plestiodon fasciatus |
| Eumeces fasciatus (Great Lakes / St. Lawrence population) | Plestiodon fasciatus |
| Eumeces septentrionalis | Plestiodon septentrionalis |
| Eumeces septentrionalis septentrionalis | Plestiodon septentrionalis |
| Eumeces skiltonianus | Plestiodon skiltonianus |
| Euphyes vestris | Euphyes vestris vestris |
| Euphyes vestris (Western population) | Euphyes vestris vestris |
| False Rue-anemone | Eastern False Rue-anemone |
| Felt-leaf Willow | Blanket-leaved Willow |
| Few-flowered Club-rush | Bashful Bulrush |
| Five-lined Skink (Carolinian population) | Common Five-lined Skink (Carolinian population) |
| Five-lined Skink (Great Lakes / St. Lawrence population) | Common Five-lined Skink (Great Lakes / St. Lawrence population) |
| Flexuous Golden Stubble | Flexuous Golden Stubble Lichen |
| Flooded Jellyskin | Flooded Jellyskin |
| Flooded Jellyskin Lichen | Flooded Jellyskin |
| Frosted Glass-whiskers (British Columbia population) | Frosted Glass-whiskers (Pacific population) |
| Frosted Glass-whiskers (Nova Scotia population) | Frosted Glass-whiskers (Atlantic population) |
| Frosted Glass-whiskers Lichen (Nova Scotia population) | Frosted Glass-whiskers (Atlantic population) |
| Fundulus diaphanus (Mainland population) | Fundulus diaphanus |
| Fundulus diaphanus (Newfoundland population) | Fundulus diaphanus |
| Gasterosteus aculeatus | Gasterosteus aculeatus |
| Gasterosteus sp. | Gasterosteus aculeatus |
| Gentiana victorinii | Gentianopsis virgata victorinii |
| Gentianopsis procera macounii var. victorinii | Gentianopsis virgata victorinii |
| Gentianopsis victorinii | Gentianopsis virgata victorinii |
| Ghost Antler | Ghost Antler Lichen |
| Giant Stickleback | Giant Threespine Stickleback |
| Goat's-rue | Virginia Goat's-rue |
| Golden Crest | Goldencrest |
| Gomphurus ventricosus | Gomphurus ventricosus |
| Gomphus quadricolor | Phanogomphus quadricolor |
| Gomphus ventricosus | Gomphurus ventricosus |
| Grasshopper Sparrow (Eastern) | Grasshopper Sparrow, pratensis subspecies |
| Great Basin Gopher Snake | Great Basin Gophersnake |
| Great Basin Gophersnake | Great Basin Gophersnake |
| Great Basin Spadefoot Toad | Great Basin Spadefoot |
| Great White Shark (Atlantic population) | White Shark (Atlantic population) |
| Great White Shark (Pacific population) | White Shark (Pacific population) |
| Greater Sandhill Crane | Sandhill Crane tabida subspecies |
| Grey Wolf | Arctic Grey Wolf |
| Grey Wolf | Northern Grey Wolf |
| Grey Wolf | Southern Grey Wolf |
| Grey Wolf | Eastern Wolf |
| Gulo gulo | Gulo gulo |
| Gymnocladus dioica | Gymnocladus dioicus |
| Hadley Lake Benthic Stickleback | Hadley Lake Benthic Threespine Stickleback |
| Hadley Lake Limnetic Stickleback | Hadley Lake Limnetic Threespine Stickleback |
| Halimolobos virgata | Crucihimalaya virgata |
| Haplopappus macleanii | Stenotus borealis |
| Harbour Seal | Harbour Seal Atlantic and Eastern Arctic subspecies |
| Harbour Seal | Harbour Seal Pacific subspecies |
| Harbour Seal (Lac des Loups Marins landlocked population) | Harbour Seal Lacs des Loups Marins subspecies |
| Harbour Seal Atlantic subspecies | Harbour Seal Atlantic and Eastern Arctic subspecies |
| Hart's-tongue Fern | American Hart's-tongue Fern |
| Hemileuca nuttallii | Hemileuca nuttalli |
| Horned Lark strigata subspecies | Streaked Horned Lark |
| Hubb's Beaked Whale | Hubbs' Beaked Whale |
| Hybognathus hankinsoni (Missouri River population) | Hybognathus hankinsoni |
| Hybognathus placitis | Hybognathus placitus |
| Hymenoxys herbacea | Tetraneuris herbacea |
| Hyperoodon ampullatus | Hyperoodon ampullatus |
| Hyperoodon ampullatus (Davis Strait population) | Hyperoodon ampullatus |
| Hyperoodon ampullatus (Gully population) | Hyperoodon ampullatus |
| Hypsiglena torquata | Hypsiglena chlorophaea |
| Ichthyomyzon castaneus (Great Lakes - Western St. Lawrence populations) | Ichthyomyzon castaneus |
| Ichthyomyzon fossor (Great Lakes - Western St. Lawrence populations) | Ichthyomyzon fossor |
| Ichthyomyzon fossor (Saskatchewan - Nelson population) | Ichthyomyzon fossor |
| Ichthyomyzon unicuspis (Great Lakes - Western St. Lawrence populations) | Ichthyomyzon unicuspis |
| Ichthyomyzon unicuspis (Saskatchewan - Nelson Rivers populations) | Ichthyomyzon unicuspis |
| Icteria virens auricollis (British Columbia population) | Icteria virens auricollis |
| Icteria virens virens (Eastern population) | Icteria virens virens |
| Ictiobus cyprinellus (Great Lakes - Western St. Lawrence populations) | Ictiobus cyprinellus |
| Incisalia irus | Callophrys irus |
| Inuktitut: Unnuasiutik or Unnuasiutiapik (Nunav... | Short-eared Owl |
| "Ipswich" Savannah Sparrow | Savannah Sparrow princeps subspecies |
| Ipswich Sparrow | Savannah Sparrow princeps subspecies |
| Island Marble insulanus subspecies | Island Marble |
| Isopyrum biternatum | Enemion biternatum |
| Isoëtes bolanderi | Isoetes bolanderi |
| Isoëtes engelmannii | Isoetes engelmannii |
| Jipu’ji’jey N’kata’law (Mi’kmaw) | Brook Floater |
| Johnson’s Hairstreak | Johnson's Hairstreak |
| Kananaskis Whitlow-grass | Long-stalked Whitlow-grass |
| Lachnanthes caroliana | Lachnanthes caroliniana |
| Lake Erie Water Snake | Lake Erie Watersnake |
| Lake Lamprey | Vancouver Lamprey |
| Lake Simcoe Whitefish | Lake Whitefish (Lake Simcoe population) |
| Lake Utopia Dwarf Smelt | Rainbow Smelt (Lake Utopia small-bodied population) |
| Lake Winnipeg Physa Snail | Lake Winnipeg Physa |
| Lampetra alaskensis | Lethenteron alaskense |
| Lampetra macrostoma | Entosphenus macrostomus |
| Lampetra richardsoni | Lampetra richardsoni |
| Lanius ludovicianus excubitorides (Prairie population) | Lanius ludovicianus excubitorides |
| Lanius ludovicianus migrans (Eastern population) | Lanius ludovicianus migrans |
| Leatherback Seaturtle | Leatherback Sea Turtle |
| Leatherback Turtle | Leatherback Sea Turtle |
| Lepomis megalotis | Lepomis peltastes |
| Leptogium polycarpum | Scytinium polycarpum |
| Lethenteron alaskense | Lethenteron alaskense |
| Leucoraja ocellata (Georges Bank-Western Scotian Shelf-Bay of Fundy population) | Leucoraja ocellata |
| Leucoraja ocellata (Southern Gulf population) | Leucoraja ocellata |
| Leucoraja ocellata (Western Scotian Shelf-Georges Bank population) | Leucoraja ocellata |
| Lewis’ Woodpecker | Lewis's Woodpecker |
| Lilaeopsis | Eastern Lilaeopsis |
| Limnetic Hadley Lake Stickleback | Hadley Lake Limnetic Threespine Stickleback |
| Limnetic Texada Island Stickleback | Paxton Lake Limnetic Threespine Stickleback |
| Lithobates pipiens (Rocky Mountain population) | Lithobates pipiens |
| Little Brown Bat | Little Brown Myotis |
| Loggerhead Seaturtle | Loggerhead Sea Turtle |
| Loggerhead Shrike (Eastern population) | Loggerhead Shrike migrans subspecies |
| Loggerhead Shrike (Prairie population) | Loggerhead Shrike Prairie subspecies |
| Loggerhead Shrike excubitorides subspecies | Loggerhead Shrike Prairie subspecies |
| Long-tailed Weasel (Prairie population) | Prairie Long-tailed Weasel |
| Longear Sunfish | Northern Sunfish |
| Lottia alveus | Lottia alveus alveus |
| Lupinus lepidus var. lepidus | Lupinus lepidus |
| Lycaeides melissa samuelis | Plebejus samuelis |
| Lynx | Canada Lynx |
| MacLean's Goldenweed | Northern Mock Goldenweed |
| Malacoraja senta (Nose of the Grand Banks Population) | Malacoraja senta |
| Mapleleaf Mussel (Great Lakes - Western St. Lawrence population) | Mapleleaf (Great Lakes - Upper St. Lawrence population) |
| Mapleleaf Mussel (Saskatchewan - Nelson population) | Mapleleaf (Saskatchewan – Nelson Rivers population) |
| Marah oreganus | Marah oregana |
| Martes americana atrata | Martes americana atrata |
| Martes americana atrata (Newfoundland population) | Martes americana atrata |
| Megaptera novaeangliae (North Pacific population) | Megaptera novaeangliae kuzira (North Pacific population) |
| Mexican Mosquito Fern | Mexican Mosquito-fern |
| Midget Quillwort | Columbia Quillwort |
| Mielichhoferia macrocarpa | Haplodontium macrocarpum |
| Milksnake | Eastern Milksnake |
| Mira River Whitefish | Lake Whitefish (Mira River population) |
| Misty Lake Lentic Stickleback | Misty Lake Lentic Threespine Stickleback |
| Misty Lake Lotic Stickleback | Misty Lake Lotic Threespine Stickleback |
| Monodon monceros | Monodon monoceros |
| Morone saxatilis (St. Lawrence Estuary population) | Morone saxatilis |
| Morrison Creek Lamprey | Western Brook Lamprey (Morrison Creek population) |
| Mountain Dusky Salamander | Allegheny Mountain Dusky Salamander |
| Mudpuppy Mussel | Salamander Mussel |
| Mustela erminea haidarum (Queen Charlotte Islands population) | Mustela erminea haidarum |
| Mustela frenata longicauda (Prairie population) | Mustela frenata longicauda |
| Myoxocephalus thompsoni (Great Lakes populations) | Myoxocephalus thompsonii |
| Nearctula sp. | Vertigo rowellii |
| Newfoundland Marten | American Marten (Newfoundland population) |
| Night Snake | Desert Nightsnake |
| Nightsnake | Desert Nightsnake |
| North Sea Beaked Whale | Sowerby's Beaked Whale |
| Northern Cricket Frog | Blanchard's Cricket Frog |
| Northern Goshawk | Northern Goshawk atricapillus subspecies |
| Northern Prairie Skink | Prairie Skink |
| Northern Red-legged Frog | Northern Red-legged Frog |
| Northern Ribbonsnake (Atlantic population) | Eastern Ribbonsnake (Atlantic population) |
| Northern Ribbonsnake (Great Lakes population) | Eastern Ribbonsnake (Great Lakes population) |
| Northern Spotted Owl | Spotted Owl caurina subspecies |
| Northwestern Alligator Lizard | Northern Alligator Lizard |
| Nothern Long-eared Bat | Northern Myotis |
| Notropis rubellus | Notropis rubellus |
| Notropis rubellus (Eastern population) | Notropis rubellus |
| Notropis rubellus (Manitoba population) | Notropis percobromus |
| Nuttall's Cottontail (British Columbia population) | Nuttall's Cottontail nuttallii subspecies |
| Nuttall's Cottontail (Prairie population) | Nuttall's Cottontail pinetis subspecies |
| Nyctea scandiaca | Bubo scandiaca |
| Oldgrowth Specklebelly | Oldgrowth Specklebelly Lichen |
| Oncorhynchus clarkii lewisi (Alberta population) | Oncorhynchus clarkii lewisi |
| Oncorhynchus clarkii lewisi (British Columbia population) | Oncorhynchus clarkii lewisi |
| Oncorhynchus nerka (Cultus Lake population) | Oncorhynchus nerka |
| Oncorhynchus nerka (Cultus population) | Oncorhynchus nerka |
| Oncorhynchus nerka (Sakinaw Lake population) | Oncorhynchus nerka |
| Oncorhynchus nerka (Adams ES population (original)) | Oncorhynchus nerka |
| Oncorhynchus tshawytscha (Bas Fraser, type fluvial, printemps) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Bas Fraser, type fluvial, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Bas Fraser, type océanique, automne) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (East Vancouver Island, Stream, Spring) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Est de l’île de Vancouver, type fluvial, printemps) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Haut Fraser, type fluvial, printemps) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Lower Fraser, Ocean, Fall) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Lower Fraser, Stream, Spring) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Lower Fraser, Stream, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Middle Fraser, Stream, Fall) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Middle Fraser, Stream, Spring) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Middle Fraser, Stream, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Moyen Fraser, type fluvial, automne) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Moyen Fraser, type fluvial, printemps) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Moyen Fraser, type fluvial, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (North Thompson, Stream, Spring) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (North Thompson, Stream, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (South Coast – Southern Fjords, Ocean, Fall population) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (South Thompson, Ocean, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (South Thompson, Stream, Summer 1.2) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Southern Mainland, Ocean, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Southern Mainland, Stream, Summer) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Thompson Nord, type fluvial, printemps) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Thompson Nord, type fluvial, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Thompson Sud, type fluvial, été 1.2) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Thompson Sud, type océanique, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Upper Fraser, Stream, Spring) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Bas Fraser, type fluvial, été (haute Pitt)) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Lower Fraser, Stream, Summer (Upper Pitt)) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Middle Fraser, Stream, Spring (MFR+GStr)) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Moyen Fraser, type fluvial, printemps (MF+DetG)) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Sud de la partie continentale (C.-.B.), type fluvial, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (Sud de la partie continentale (C.-.B.), type océanique, été) | Oncorhynchus tshawytscha |
| Oncorhynchus tshawytscha (West Vancouver Island Ocean Fall (South) population) | Oncorhynchus tshawytscha |
| Orcinus orca (North Pacific "resident" populations) | Orcinus orca |
| Orcinus orca (Northeast Pacific northern resident population) | Orcinus orca |
| Orcinus orca (Northeast Pacific offshore population) | Orcinus orca |
| Orcinus orca (Northeast Pacific southern resident population) | Orcinus orca |
| Orcinus orca (Northeast Pacific transient population) | Orcinus orca |
| Orcinus orca (Northern Resident Population) | Orcinus orca |
| Orcinus orca (Northern Resident population) | Orcinus orca |
| Orcinus orca (Northwest Atlantic / Eastern Arctic populations) | Orcinus orca |
| Orcinus orca (Offshore population) | Orcinus orca |
| Orcinus orca (Southern Resident Population) | Orcinus orca |
| Orcinus orca (Southern Resident population) | Orcinus orca |
| Orcinus orca (West Coast Transient population) | Orcinus orca |
| Osmerus mordax (Éperlan arc-en-ciel de petite taille du lac Utopia) | Osmerus mordax |
| Osmerus sp. | Osmerus mordax |
| Osmerus spectrum | Osmerus mordax |
| Ostrea conchaphila | Ostrea lurida |
| Otus asio | Megascops asio |
| Otus kennicottii | Megascops kennicottii |
| Otus kennicottii kennicottii | Megascops kennicottii kennicottii |
| Otus kennicottii macfarlanei | Megascops kennicottii macfarlanei |
| Oxystegus recurvifolius | Chionoloma recurvifolius |
| Pacific Giant Salamander | Coastal Giant Salamander |
| Pacific Gopher Snake | Pacific Gophersnake |
| Pacific Gophersnake | Pacific Gophersnake |
| Pacific Great Blue Heron | Great Blue Heron fannini subspecies |
| Pacific Pond Turtle | Northwestern Pond Turtle |
| Panax quinquefolium | Panax quinquefolius |
| Pantherophis gloydi | Pantherophis vulpinus |
| Pantherophis gloydi (Carolinian population) | Pantherophis vulpinus |
| Pantherophis gloydi (Great Lakes / St. Lawrence population) | Pantherophis vulpinus |
| Pantosteus jordani (Saskatchewan - Nelson population) | Pantosteus jordani |
| Paxton Lake Benthic Stickleback | Paxton Lake Benthic Threespine Stickleback |
| Paxton Lake Limnetic Stickleback | Paxton Lake Limnetic Threespine Stickleback |
| Peale's Peregrine Falcon | Peregrine Falcon pealei subspecies |
| Phalacrocorax auritus | Phalacrocorax auritus |
| Phalocrocorax auritus | Phalacrocorax auritus |
| Phoca hispida | Pusa hispida |
| Phoca vitulina mellonae (Lac des Loups Marins landlocked population) | Phoca vitulina mellonae |
| Phrynosoma douglasii (British Columbia population) | Phrynosoma douglasii |
| Phrynosoma douglassii brevirostre | Phrynosoma hernandesi |
| Phrynosoma douglassii douglassii (British Columbia population) | Phrynosoma douglasii |
| Picoides albolarvatus | Dryobates albolarvatus |
| Pighead Prickleback | Blackline Prickleback |
| Pigmy Short-horned Lizard | Pygmy Short-horned Lizard |
| Pink Rush | Rush Pink |
| Pipistrellus subflavus | Perimyotis subflavus |
| Plains Spadefoot Toad | Plains Spadefoot |
| Plebejus saepiolus insulanus | Icaricia saepiolus insulanus |
| Polemonium van-bruntiae | Polemonium vanbruntiae |
| Porbeagle Shark | Porbeagle |
| Prairie Loggerhead Shrike | Loggerhead Shrike Prairie subspecies |
| Prionace glauca (Atlantic population) | Prionace glauca |
| Prionace glauca (Pacific population) | Prionace glauca |
| Prosopium coulterii (Waterton Lake populations) | Prosopium coulterii |
| Psilocarphus brevissimus | Psilocarphus brevissimus |
| Psilocarphus elatior (Pacific population) | Psilocarphus elatior |
| Puffinus creatopus | Ardenna creatopus |
| Puget Oregonian Snail | Puget Oregonian |
| Pygmy Longfin Smelt | Longfin Smelt (Pygmy populations) |
| Pygmy Short-horned Lizard (British Columbia population) | Pygmy Short-horned Lizard |
| Quadrula quadrula (Great Lakes - Upper St. Lawrence populations) | Quadrula quadrula |
| Quadrula quadrula (Great Lakes - Western St. Lawrence population) | Quadrula quadrula |
| Quadrula quadrula (Saskatchewan - Nelson population) | Quadrula quadrula |
| Queen Charlotte Goshawk | Northern Goshawk laingi subspecies |
| Queen Snake | Queensnake |
| Rainbow Mussel | Rainbow |
| Rana pipiens (Eastern population) | Lithobates pipiens |
| Rana pipiens (Prairie population) | Lithobates pipiens |
| Rana pipiens (Rocky Mountain population) | Lithobates pipiens |
| Rana pipiens (Southern Mountain population) | Lithobates pipiens |
| Rana pipiens (Western Boreal/Prairie populations) | Lithobates pipiens |
| Rangifer tarandus (Northern Mountain population) | Rangifer tarandus caribou |
| Rangifer tarandus (Southern Mountain population) | Rangifer tarandus caribou |
| Rangifer tarandus caribou (Atlantic-Gaspésie population) | Rangifer tarandus |
| Rangifer tarandus caribou (Boreal population) | Rangifer tarandus |
| Rangifer tarandus caribou (Lake Utopia large-bodied population) | Rangifer tarandus caribou |
| Rangifer tarandus caribou (Newfoundland population) | Rangifer tarandus |
| Rangifer tarandus caribou (Northern Mountain population) | Rangifer tarandus caribou |
| Rangifer tarandus caribou (Southern Mountain population) | Rangifer tarandus caribou |
| Rangifer tarandus dawsoni (Queen Charlotte Islands population) | Rangifer tarandus dawsoni |
| Rangifer tarandus groenlandicus | Rangifer tarandus |
| Rangifer tarandus groenlandicus (Dolphin and Union population) | Rangifer tarandus |
| Rangifer tarandus pearyi ([désignation initiale]) | Rangifer tarandus pearyi |
| Rangifer tarandus pearyi ([original designation]) | Rangifer tarandus pearyi |
| Ranunculus alismaefolius var. alismaefolius | Ranunculus alismifolius |
| Ranunculus alismifolius var. alismifolius | Ranunculus alismifolius |
| Red Oak Stubble | Red Oak Stubble Lichen |
| Red-legged Frog | Northern Red-legged Frog |
| Reithrodontomys megalotis dychei (Prairie population) | Reithrodontomys megalotis dychei |
| Reithrodontomys megalotis megalotis (British Columbia population) | Reithrodontomys megalotis megalotis |
| Rhinichthys cataractae | Rhinichthys cataractae |
| Rhinichthys cataractae ssp. | Rhinichthys cataractae |
| Rhinichthys sp. | Rhinichthys cataractae |
| Rhynochophanes mccownii | Rhynchophanes mccownii |
| Ross’ Gull | Ross's Gull |
| Rosyface Shiner (Manitoba population) | Carmine Shiner |
| Rubber Boa | Northern Rubber Boa |
| Sage Grouse (British Columbia population) | Greater Sage-Grouse phaios subspecies |
| Sage Grouse (Prairie population) | Greater Sage-Grouse urophasianus subspecies |
| Salamander Mussel | Salamander Mussel |
| Salix chlorolepsis | Salix chlorolepis |
| Salmo salar (Inner Bay of Fundy populations) | Salmo salar |
| Sand Verbena | Small-flowered Sand-verbena |
| Sand Verbena Moth | Sand-verbena Moth |
| Sander vitreum glaucus | Sander vitreus glaucus |
| Satyrium behrii columbia | Satyrium behrii |
| Scirpus verecundus | Trichophorum planifolium |
| Sclerophora peronella (British Columbia population) | Sclerophora peronella |
| Sclerophora peronella (Nova Scotia population) | Sclerophora peronella |
| Seaside Bone | Seaside Bone Lichen |
| Seaside Centipede | Seaside Centipede Lichen |
| Sebastes aleutianus type I | Sebastes sp. type I |
| Sebastes aleutianus type II | Sebastes sp. type II |
| Sebastes sp. type 1 | Sebastes sp. type I |
| Sebastes sp. type I | Sebastes sp. type I |
| Sebastes sp. type II | Sebastes sp. type II |
| Seiurus motacilla | Parkesia motacilla |
| Sewellel | Mountain Beaver |
| Simpsonais ambigua | Simpsonaias ambigua |
| Sistrurus catenatus catenatus | Sistrurus catenatus |
| Slender Wooly-heads | Slender Woolly-heads |
| Smallmouth Salamander | Small-mouthed Salamander |
| Solidago speciosa var. rigidiuscula | Solidago speciosa |
| Soupfin Shark | Tope |
| Speotyto cunicularia | Athene cunicularia |
| Spiny Softshell Turtle | Spiny Softshell |
| Spirinchus sp. | Spirinchus thaleichthys |
| Spotted Owl | Spotted Owl caurina subspecies |
| Stinkpot | Eastern Musk Turtle |
| Stizostedion vitreum glaucum | Sander vitreus glaucus |
| Streaked Horned Lark | Streaked Horned Lark |
| Striped Wolffish | Atlantic Wolffish |
| Strix occidentalis | Strix occidentalis caurina |
| Sylvilagus nuttallii nuttallii (British Columbia population) | Sylvilagus nuttallii nuttallii |
| Sylvilagus nuttallii pinetis (Prairie population) | Sylvilagus nuttallii pinetis |
| Symphyotrichum subulatum | Symphyotrichum subulatum |
| Symphyotrichum subulatum (Bathurst population) | Symphyotrichum subulatum |
| Tailed Frog (Pacific Coast population) | Coastal Tailed Frog |
| Tailed Frog (Southern Mountain population) | Rocky Mountain Tailed Frog |
| Terrapene carolina carolina | Terrapene carolina |
| Tiny Cryptanthe | Tiny Cryptantha |
| Triphysaria versicolor ssp. versicolor | Triphysaria versicolor |
| Tundra Peregrine Falcon | Peregrine Falcon tundrius subspecies |
| Tympanuchus cupido | Tympanuchus cupido pinnatus |
| Ursus arctos | Ursus arctos |
| Van Brunt’s Jacob’s Ladder | Van Brunt's Jacob's-ladder |
| Vananda Creek Benthic Stickleback | Vananda Creek Benthic Threespine Stickleback |
| Vananda Creek Limnetic Stickleback | Vananda Creek Limnetic Threespine Stickleback |
| Vesper Sparrow affinis subspecies | Coastal Vesper Sparrow |
| Virgulus sericeus | Symphyotrichum sericeum |
| Vole Ears | Vole Ears Lichen |
| Water-pennywort | Water Pennywort |
| Western Blue-flag | Western Blue Flag |
| Western Bumble Bee Northern population | Western Bumble Bee mckayi subspecies |
| Western Bumble Bee Southern population | Western Bumble Bee occidentalis subspecies |
| Western Harvest Mouse (British Columbia population) | Western Harvest Mouse megalotis subspecies |
| Western Harvest Mouse (Prairie population) | Western Harvest Mouse dychei subspecies |
| Western Prairie Fringed Orchid | Western Prairie Fringed Orchid |
| Western Prairie Fringed-orchid | Western Prairie Fringed Orchid |
| Western Screech-Owl | Western Screech-owl |
| Western Screech-Owl kennicottii subspecies | Western Screech-owl kennicottii subspecies |
| Western Screech-Owl macfarlanei subspecies | Western Screech-owl macfarlanei subspecies |
| Western Silver-leaved Aster | Western Silvery Aster |
| Western Yellow-breasted Chat (British Columbia population) | Yellow-breasted Chat auricollis subspecies (Southern Mountain population) |
| Western Yellow-breasted Chat (Prairie population) | Yellow-breasted Chat auricollis subspecies (Prairie population) |
| Whip-poor-will | Eastern Whip-poor-will |
| Willow Aster | Willowleaf Aster |
| Wilsonia canadensis | Cardellina canadensis |
| Wilsonia citrina | Setophaga citrina |
| Woodland Caribou (Atlantic-Gaspésie population) | Caribou (Atlantic-Gaspésie population) |
| Woodland Caribou (Boreal population) | Caribou (Boreal population) |
| Woodland Caribou (Newfoundland population) | Caribou (Newfoundland population) |
| Woodland Caribou (Northern Mountain population) | Woodland Caribou (Northern Mountain population) |
| Woodland Caribou (Queen Charlotte Islands population) | Caribou dawsoni subspecies |
| Woodland Caribou (Southern Mountain population) | Woodland Caribou (Southern Mountain population) |
| Woodland Caribou Dawson's subspecies | Caribou dawsoni subspecies |
| Yellow Montane Violet | Yellow Montane Violet praemorsa subspecies |
| Yellow-breasted Chat (British Columbia population) | Yellow-breasted Chat auricollis subspecies (Southern Mountain population) |
| Yellow-breasted Chat (Eastern population) | Yellow-breasted Chat virens subspecies |
| Yellow-breasted Chat (Prairie population) | Yellow-breasted Chat auricollis subspecies (Prairie population) |
| iihtuup (Nuu-chah-nulth name) | Humpback Whale (North Pacific population) |
The Committee on the Status of Endangered Wildlife in Canada (COSEWIC) was created in 1977 as a result of a recommendation at the Federal-Provincial Wildlife Conference held in 1976.
It arose from the need for a single, official, scientifically sound, national classification of wildlife species at risk. In 1978, COSEWIC designated its first wildlife species and produced its first list of Canadian wildlife species at risk.
In 2002, COSEWIC celebrated 25 years of science-based assessment of the status of wildlife species at risk in Canada.
On June 5th 2003, the Species at Risk Act (SARA) was proclaimed. SARA establishes COSEWIC as an advisory body, ensuring that wildlife species will continue to be assessed using the best available scientific, community, and Aboriginal Traditional Knowledge.
The Aboriginal Traditional Knowledge (ATK) Subcommittee held its inaugural meeting in February 2006. The ATK Subcommittee has recently developed the COSEWIC ATK Process and Protocols Guidelines. The ATK Subcommittee is currently implementing these guidelines in order to integrate ATK into the wildlife species assessment process.
Even after over forty years of existence, COSEWIC continues to evolve and to fine-tune its operations in an effort to do its job in the best possible manner.
The Canadian Wildlife Service, Environment and Climate Change Canada, provides full administrative and financial support to the COSEWIC Secretariat.
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