Birds of the Rocky Mountains
Johnsgard, Paul A.
A Guide to the Identification and Natural History of the Sparrows of the United States and Canada.
Rising, James D.
Wood Warblers' World
Harrison, Hal H.
The Breeding Bird Survey 1967 and 1968
Robbins, Chandler S.; Willet T. Van Velzen
A Field Guide to the Nests, Eggs and Nestlings of North American Birds
Save the Last Dance: A Story of North American Grassland Grouse [Signed]
The Wind Masters : The Lives of North American Birds of Prey [First Edition]
The Ducks, Geese and Swans of North America: a Vade Mecum for the Naturalist and the Sportsman
Kortright, Francis H.
Illustrations by T.M. Shortt
North American Owls: Biology and Natural History [First Edition]
ABA Field Checklist - Weatherproof field card
American Birding Association
Fauna Boreali-Americana. Part Second: The Birds
Swainson, William & John Richarson