Field Guide to Western Birds' Nests

Harrison, Hal H.

Look at That Bird! A Young Naturalist's Guide to Pacific Northwest Birding

DeWitz, Karen

Nesting Birds of the Black Forest, Colorado

Hering, Louise

The Condor. Fiftieth Anniversary Volume

Brooks, Allan

The Western Bird Watcher: An Introduction to Birding in the American West

Zimmer, Kevin J.

Peterson Field Guide to Birds of Western North America, Fifth Edition (Includes Hawaii)

Peterson, Roger Tory

Birds of the Pacific Northwest: A Photographic Guide. Second edition

Aversa, Tom, Richard Cannings and Hal Opperman

Raptors of the West Captured in Photographs [Scratch & Dent]

DAVIS, Kate

Backyard Birds Flash Cards: Eastern & Central North America

Cornell Lab of Ornithology

Birds of Prey of the West: Field Guide

Tekiela, Stan

The Birds of California. A Complete, Scientific and Popular Account of the 580 Species & Subspecies

DAWSON, William Leon

The Western Bird Watcher: An Introduction to Birding in the American West

Zimmer, Kevin J.