Peterson Reference Guide to Bird Behavior, by John Kricher — a review
10,000 Birds
NOVEMBER 14, 2020
It’s an adaptive necessity to challenge a perceived invader right now – it takes only seconds for most birds to mate, so a territory holder, like this one, below left, can’t allow another male to linger: But phenotype and extended phenotype (physical appearance and behavior) – are inextricably bound, and much of Kricher’s book addresses the former.
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