The Birdwatcher's Book of Lists: Western Region
Short, Dr. Lester L.
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.
Faces of the Great Plains: Prairie Wildlife
JOHNSGARD, Paul A.; GRESS, Bob
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