Birds of Western North America: A Photographic Guide
STERRY, Paul; SMALL, Brian E.
Peterson Field Guide to Birds of Western North America, Fourth Edition
Peterson, Roger Tory; Peterson, Virginia Marie
Illustrations by Peterson, Roger Tory
Better Birdwatching in the West [DVD] Field Guide
LaFleur, Joseph A.
Birds of Sage and Scree
American Museum of Natural History Birds of North America: Western Region
VUILLEUMIER, Francois; editor
Great Wildlife of the Great Plains
JOHNSGARD, Paul A.
Raptors of the West Captured in Photographs
Stokes Beginner's Guide to Birds: Western Region
STOKES, Donald & Lillian
Dragonflies and Damselflies of the West
Small Mountain Owls