Field Guide to the Birds of North America (Pelagic Identification Guides)

The Birds of Costa Rica: A Field Guide (Zona Tropical Publications)

Feathers: The Evolution of a Natural Miracle

How Birds Work: An Illustrated Guide to the Wonders of Form and Function - from Bones to Beak (How Nature Works)

National Geographic Pocket Guide to the Birds of North America

National Geographic Complete Birds of North America, 3rd Edition: Featuring More Than 1,000 Species With the Most Detailed Information Found in a Single Volume

Peterson Field Guide To Reptiles And Amphibians Eastern & Central North America: The Definitive Guide to the Reptiles and Amphibians of Eastern and Central North America

Birds of Southern California: A Guide to Common & Notable Species

A Most Remarkable Creature: The Hidden Life of the World's Smartest Birds of Prey

Birds of the Photo Ark