North American Breeding Bird Survey Factsheet
What is the BBS? A standardized avian point count survey conducted by thousands of dedicated volunteers across North America, every year, since 1966. This program is the foundation for science-based decisions concerning bird conservation and management in the U.S. and Canada.
- Cat. No.: CW66-613/2020E-PDF
- ISBN: 978-0-660-35600-6
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