Vagrancy in Birds: A Book Review
10,000 Birds
APRIL 5, 2022
per cent of individuals of a species at a given time” and a vagrant bird as a bird that shows up outside of this range (p. It reminds me a lot of Rare Birds of North America , the 2014 book by Steve N. They define geographic range as encompassing “something like 99.99 It’s not always easy reading. Don’t worry.
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