Ornithography: An Illustrated Guide to Bird Lore & Symbolism (Volume 2) (Hidden Languages)

The Sibley Field Guide to Birds of Eastern North America: Second Edition (Sibley Guides)

The Sibley Guide to Birds, 2nd Edition

National Geographic Field Guide to the Birds of the United States and Canada, 8th edition

Sibley Birds West: Field Guide to Birds of Western North America

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

Bird Songs: 250 North American Birds in Song

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

Handbook of Bird Biology (Cornell Lab of Ornithology)

Peterson Field Guide To Birds Of North America, Second Edition: The Definitive Resource for Bird Identification and Observation in the Natural World of North America