The Sibley field guide to birds of western North America

Author / Creator

Sibley, David, 1961-

Available as

Physical

Summary

Features 703 bird species plus regional populations found west of the Rocky Mountains. Accounts include more than 4,600 illustrations with descriptive caption text pointing out the most important f...

Features 703 bird species plus regional populations found west of the Rocky Mountains. Accounts include more than 4,600 illustrations with descriptive caption text pointing out the most important field marks. Each entry contains new text concerning frequency, nesting, behavior, food and feeding, voice description, and key identification features. Accounts also include maps created from information contributed by 110 regional experts across the continent.

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