National Geographic Field Guide to the Birds of North America, Sixth Edition. Questo articolo non è disponibile.National Geographic Field Guide to the Birds of North America, Sixth Edition

National Geographic’s iconic, best-selling guide for birders and birding enthusiasts of all levels includes unique subspecies maps never before seen in a field guide; extensive migration information overlaid on species maps; field-mark labels on all artwork; text updates with new species; reorganization reflecting taxonomic changes in the bird community; organization, readability, and increased page count.

Jon L. Dunn is a leading expert on the identification and distribution of North American birds. He is a consultant for Birding magazine, and former chair of the American Birding Association's Checklist Committee.
 
Jonathan Alderfer is chief consultant for National Geographic's Birding Program and a widely published author and field guide illustrator. One of the nation's foremost birding artists, he is well known for his authority on North American birds and his expertise as a field ornithologist.