Hawks, Eagles and Falcons of North America: Biology and Natural History
Johnsgard, Paul A.
North American Owls: Biology and Natural History [First Edition]
ABA Field Checklist - 2016 Weatherproof edition field card
American Birding Association
Birds of North America: A Guide to Field Identification. A Golden Field Guide
Robbins, Chandler S., Bertel Bruun, and Herbert S. Zim
Hummingbirds of North America: Attracting, Feeding, and Photographing
The Sibley Guide to Bird Life and Behavior
Sibley, David Allen
Fauna Boreali-Americana. Part Second: The Birds
Swainson, William & John Richarson
Hummingbirds of North America: The Photographic Guide
Howell, Steve N.G.
Life Histories of North American Thrushes, Kinglets, and Their Allies
Bent, Arthur Cleveland and Collaborators
Woodpeckers of North America
Systematics and Behavior of Some North American Woodpeckers, Genus Picoides (Aves)
Short, Lester L.
National Geographic Field Guide to the Birds of North America, Seventh Edition
DUNN, Jon L. and Jonathan ALDERFER