National Geographic Kids Bird Guide of North America, Second edition

Alderfer, Jonathan

National Geographic Field Guide to the Birds of North America, Seventh Edition

DUNN, Jon L. and Jonathan ALDERFER

National Geographic Complete Birds of North America, 2nd Edition

Alderfer, Jonathan

National Geographic Field Guide to the Birds of North America, Fourth edition

Dunn,Jon L., Jonathan K. Alderfer and Paul E. Lehman

National Geographic Pocket Guide to the Birds of North America

Erickson, Laura; Alderfer, Jonathan

National Geographic Birding Essentials: All the Tools, Techniques, and Tips You Need to Begin and Be

Alderfer, Jonathan; Dunn, Jon L.

National Geographic Field Guide to the Birds of Eastern North America

DUNN, Jon L.; ALDERFER, Jonathan

National Geographic Field Guide to the Birds of Western North America

DUNN, Jon L.; ALDERFER, Jonathan

National Geographic Bird Coloration

HILL, Geoffrey E.