10,000 Birds

NOVEMBER 5, 2013

A little bit of research when I got home unraveled the ways of publishers here and in Great Britain. The accounts aim for specificity and authority; dates and locations of rarity sightings are given, and research articles on nesting and behavior are cited. Even during the breeding season the birds appear to be quite unwary of humans.

Trinidad 194

Trinidad Birds South America Research 194

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 am particularly happy to see that the bird communication section includes recent research on singing female birds. These are all informative and current.

North America 279

North America America Birds California Condor 279

10,000 Birds

DECEMBER 5, 2017

Introduction: The 8-page Introduction, down from fourteen pages in the 4th edition, succinctly and intelligently describes the contents of the field guide and the concepts and vocabulary behind it–AOU taxonomy, scientific names, subspecies, molt and plumage sequence, range and distribution maps.

North America 182

North America America 2017 Birds 182