The Condor. Fiftieth Anniversary Volume
The Western Bird Watcher: An Introduction to Birding in the American West
Zimmer, Kevin J.
Peterson Field Guide to Birds of Western North America, Fifth Edition (Includes Hawaii)
Peterson, Roger Tory
Birds of the Pacific Northwest: A Photographic Guide. Second edition
Aversa, Tom, Richard Cannings and Hal Opperman
Black Brant: Sea Goose of the Pacific Coast
Einarsen, Arthur S.
The Grail Bird: The Rediscovery of the Ivory-Billed Woodpecker [PB]
Raptors of the West Captured in Photographs [Scratch & Dent]
Backyard Birds Flash Cards: Eastern & Central North America
Cornell Lab of Ornithology
Birds of Prey of the West: Field Guide
The Birds of California. A Complete, Scientific and Popular Account of the 580 Species & Subspecies
DAWSON, William Leon
Birds of Prey in the American West
Glinski, Richard L.
Illustrations by Vezo, Tom