Branding Breeding Guidelines Research 
10,000 Birds
JUNE 1, 2021
Interestingly, Chestnut-collared Longspur does appear under its brand-new official name, Thick-billed Longspur, though the description underneath uses the old name. I like my field guides to have clearly stated taxonomic guidelines in the Introduction, even if it includes a page of exceptions, and a cut-off date.
10,000 Birds
DECEMBER 5, 2017
There are page references to and from the Species Accounts maps, which makes research transparently easy. Looks exactly the same at first until you notice brand-new images of the kite in flight. The wonder of research? And, subspecies are also treated visually and often in the text of the Main Species accounts. Authors: Jon L.
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