The Crossley ID Guide: Waterfowl–A Book Review
10,000 Birds
NOVEMBER 7, 2017
This is how, I think, the “Crossley technique” works best—coverage of specific bird families that pose identification challenges to birders at all levels of skill. Mystery images were one of the innovations of The Shorebird Guide (2006, co-authored by Crossley with Michael O’Brien and Kevin T. Today there are an estimated 1.2
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