Peterson Guide to Bird Identification—In 12 Steps: A Book Review
10,000 Birds
APRIL 3, 2018
In the four-part ABA Blog series on subspecies , published in 2012, he argued we know too little about subspecies to use the term, and that birders should “show the characters of humility” and adapt alternative ways of articulating geographic differences. Species are useful handles (p. 16, below).”
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