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
Bird Lore I-XXXII
The Audubon Society Master Guide to Birding, Volume. 3: Old World Warblers to Sparrows
Farrand, John, Jr. (editor)
Birds of Organ Pipe Cactus National Monument
Wilt, Richard A.
Hawks, Eagles and Falcons of North America: Biology and Natural History
Johnsgard, Paul A.
The Warblers of North America [Third Edition]
CHAPMAN, Frank M.
American Waterfowl-Their Present Situation and the Outlook for their Future
Phillips, John C.; Frederick C. Lincoln
A Field Guide to the Nests, Eggs and Nestlings of North American Birds
North American Birds: A Coloring Book
The American Robin: A Backyard Institution
Illustrations by Hall, Martha R.
Handbook of Birds of Eastern North America
Chapman, Frank M.
U.S. Pacific Railroad Surveys: Reports of Explorations and Surveys. Volume IX, Part II
Baird, Spencer Fullerton
A Bibliography of the Catalogs, Lists, Faunal and Other Papers on the Butterflies of North America N
Field, William D.; Cyril F. Dos Passo; John H. Masters
The Sibley Guide to Birds, First edition, first printing
The Book of Birds: Common Birds of Town and Country and American Game Birds
Henshaw, Henry W.
Wild Birds of the Americas
SHORTT, Terence Michael
A Swift Guide to Butterflies of North America Second Edition
Report Upon Geographical and Geological Explorations and Surveys West of the One Hundredth Meridian:
Wheeler, Geo. M. & John J. Stevenson