"From the most trusted name in birding--beloved by millions, backyard enthusiast and expert alike--comes a completely new and definitive guide to the birds of North America: the most comprehensive, authoritative, and up-to-date work of its kind. Developedby the creators of the bestselling Audubon field guides, this master guide is the result of a collaboration between leading scientists, scholars, taxonomic and field experts, photo editors, and designers....