Ecology and Conservation of Grassland Birds of the Western Hemisphere (HC). SAB No. 19
Vickery, Peter D and James R. Herkert, Editors
Effects of Habitat Fragmentation on Birds in Western Landscapes (PB). SAB No. 25
George, T. Luke; Dobkin, David S.
Birds of the Northwestern National Parks: A Birder's Perspective
Wauer, Roland H.; Wolf, Mimi Hoppe
National Audubon Society Field Guide to North American Birds: Western Region
Udvardy, Miklos D. F.; Farrand, John Jr.; National Audubon Society
Birding in the American West: A Handbook
Zimmer, Kevin J.
Birding in the American West: A Handbook [PB]
Birds of the Central Rockies
Wassink, Jan L.
Bird Songs of the Pacific States (CASS) [Cassette]
Sander, Thomas G.
Bird Songs of Southeastern Arizona & Sonora, Mexico (CD)
Keller, Geoffrey E.
National Geographic Field Guide to the Birds of Western North America
DUNN, Jon L.; ALDERFER, Jonathan
Bird Songs of the Pacific Northwest (CD)
KELLER, Geoffrey A.; VYN, Gerrit
Birds of Western North America: A Photographic Guide
STERRY, Paul; SMALL, Brian E.