Sibley Field Guide to Birds of Eastern North America - David Sibley, editura Anova Pavilion

Field Guide to the Birds of Western North America, Paperback/David Sibley

Identifying Birds of Prey: Quick Reference Guide for Eastern North America, Paperback/Laura Erickson

National Geographic Field Guide to the Birds of Eastern North America - Jon L. Dunn

Sibley Field Guide to Birds of Eastern North America - David Sibley

Birds of Western North America Birds of Western North America: A Photographic Guide a Photographic Guide

Peterson Field Guide to Birds of Western North America

Peterson Field Guide to Birds of Eastern and Central North America

Amnh Birds of North America Western - Dk

Field Guide to the Birds of Eastern North America, Paperback/David Sibley

Peterson Field Guide to Birds of Western North America, Fifth Edition - Roger Tory Peterson

Field Guide to the Birds of Eastern North America

All about Backyard Birds- Eastern & Central North America - Cornell Lab Of Ornithology

The Sibley Field Guide to Birds of Western North America

Amnh Pocket Birds of North America Eastern Region - Dk

Peterson Field Guide to Birds of Eastern & Central North America, Seventh Ed. - Roger Tory Peterson

American Museum of Natural History: Pocket Birds of North America, Eastern Region, Paperback/American Museum of Natural History

Field Guide to the Birds of Western North America

Sibley Field Guide to Birds of Western North America

The Sibley Field Guide to Birds of Eastern North America

Peterson Field Guide to Birds of Eastern and Central North America, Paperback/Roger Tory Peterson

National Geographic Field Guide to the Birds of Eastern North America, Paperback/Jon L. Dunn

Pocket Birds of North America - Eastern Region

AMNH Birds of North America Eastern

A Peterson Field Guide to the Birds of Eastern and Central North America: Large Format Edition - Roger Tory Peterson