National Geographic Pocket Guide to the Birds of North America by Erickson, Laura; Alderfer, Jonathan - 1426221193 by National Geographic Society

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This desk reference is the most up-to-date and comprehensive source of knowledge on North American bird identification, distribution, behavior, habitat, and conservation concerns available today. More an encyclopedia than a field guide, National Geographic's Complete Birds is a browsable treasure trove of facts.

National Geographic Complete Birds of North America [Book]

Smithsonian Handbooks: Birds of North America - Eastern Region (Smithsonian Handbooks) (DK Handbooks): Fred J. Alsop III: 9780789471567: : Books

Birder's World Field of View: New research shows that much of bird classification is wrong

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National Geographic Backyard Guide to the Birds of North America, 2nd Edition

National Geographic Complete Birds of North America, 3rd Edition: Featuring More Than 1,000 Species With the Most Detailed Information Found in a Single Volume by Jonathan Alderfer, Hardcover

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The beginner's guide to birding : the easiest way for anyone to explore the incredible world of birds - Brooklyn Public Library

North America Bird Checklist & Birding Journal: Books, Mind Friendly: 9798670315517: : Books