Illustrations of the Birds of California, Texas, Oregon, British and Russian America
Birds of the Pacific Northwest: A Photographic Guide
Aversa, Tom; Richard Cannings, Hal Opperman
Large-Scale Conservation Assessment for Neotropical Migratory Land Birds in the Interior Columbia Ri
Saab, Victoria A.
Must-See Birds of the Pacific Northwest: 85 Unforgettable Species and How to Find Them
Swanson, Sarah and Max Smith
Birds of The Pacific Northwest With Special Reference To Oregon
Gabrielson, Ira N.; Jewett, Stanley G.
Western Birds Backyard Guide: Bird Watchers Digest Backyard Guides
Bill Thompson III
Freeway Birding, San Francisco to Seattle
Fuller, Harry G.
Guide to Birds of the Rogue Valley
Massey, Barbara W.; Vroman, Dennis P.
Distribution and Biology of the Spotted Owl in Oregon.
Forsman, Eric; Meslow, Charles; Wight, Howard
Birds of Malheur National Wildlife Refuge, Oregon
Littlefield, Carroll D.
An Annotated Bibliography of Oregon Bird Literature Published Before 1935
Jobanek, George A.