Hawks, Eagles and Falcons of North America: Biology and Natural History
Johnsgard, Paul A.
North American Owls: Biology and Natural History [First Edition]
The Natural History of Cape Clear Island
Sharrock, J.T.R., editor
How Birds Work: An Illustrated Guide to the Wonders of Form and Function - from Bones to Beak
Understanding Bird Behavior: An Illustrated Guide to What Birds Do and Why
Tong, Wenfei, foreword by Ben C. Sheldon
Coro-Coro: The World of the Scarlet Ibis
Zahl, Paul A.
The Bird Way: A New Look at How Birds Talk, Work, Play, Parent, and Think
The Herons of the World
Hancock, James; Elliott, Hugh
What Birds Eat: How to Preserve the Natural Diet and Behavior of North American Birds
Moult and Ageing of European Passerines, Second Edition
Jenni, Lukas and Raffael Winkler
Ecological Aspects of Social Evolution: Birds and Mammals
Rubenstein, Daniel I.; Wrangham, Richard W.
Bird Love: The Family Life of Birds