National Geographic Field Guide to the Birds of North America, 7th Edition by Jonathan Alderfer, Jon L. Dunn, Paperback
Birds of Missouri Field Guide by Stan Tekiela, Paperback
David Sibley
The Sibley Field Guide to Birds of Eastern North America: Second Edition – Sibley Guides
Guide to the Birds of Alaska, 6th edition eBook : Armstrong, Robert H., Warnock, Nils: Kindle Store
Birds of British Columbia and the Pacific Northwest: A Complete Guide, Second Edition: Cannings, Richard, Aversa, Tom, Opperman, Hal: 9781772033274: Books
Bolen Books Sibley's Backyard Birds of the Pacific Northwest
Backyard Birdsong Guide to Western North America – Theodore Payne Foundation
Field Guide to the Birds of North America by Ted Floyd, Paperback
Ontario Birds : 125 Common Birds used book by Chris Fisher: 9781551050690