Birds of the Rocky Mountains
Johnsgard, Paul A.
National Geographic Guide to Birdwatching Sites: Western U.S.
Freeway Birding, San Francisco to Seattle
Fuller, Harry G.
The New Stokes Field Guide to Birds: Western Region
Raptors of Western North America: A Comprehensive Guide to All Species. Quick Reference Guide
Karlson, Kevin T.
Pelagic Studies of Seabirds in the Central and Eastern Pacific Ocean
KING, Warren B.
Better Birdwatching DVD Field Guide Series: East, West, and Southwest
Utah's Featured Birds and Viewing Sites: A Conservation Platform for IBAs and BHCAs
Evans, Keith and Martinson, Wayne
Better Birdwatching in the Southwest [DVD] Field Guide
Birding the Southwestern National Parks
Wauer, Roland H.
Stokes Field Guide To Bird Songs - Western Region (CD)
Colver, Kevin J.; Stokes, Donald; Stokes, Lillian
An Audubon Handbook: Western Birds