National Audubon Society Birds of North America: A Guide Review
10,000 Birds
JUNE 1, 2021
If you remember that the first edition of Sibley was published with “National Audubon Society” on the cover, raise your hand. Interestingly, Chestnut-collared Longspur does appear under its brand-new official name, Thick-billed Longspur, though the description underneath uses the old name. I didn’t.).
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