10,000 Birds
APRIL 5, 2022
There are many more factors than I imagined: compass errors, wind drift, overshooting, extreme weather and irruptions, natural dispersal, and human-driven vagrancy. The chapter on compass errors will probably be the most popular amongst birders who love to discuss reversal and mirror-image migration routes.
10,000 Birds
MARCH 14, 2011
Kills in Canada, Alaska and Mexico are not included in the count. And that through the use of science based decisions (made by biologists who have trained and been schooled on that very thing (That is what gives them the “bestowing&# power you speak of. The Sandhill Crane is no different than the Aleutian strain of Canada goose.
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