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Now through December 31, 2013, receive a free Eagle Optics Guide to Eastern North American Wood Warblers with your purchase.
Get the latest edition of National Geographic Field Guide to Birds of North America for all the new information. The sixth edition includes new art figures with field-mark labels, unique subspecies maps, and extensive migration information overlaid on species maps. Updates reveal a fresh design for user-friendly organization and readability, the most recent information on new species, and taxonomic changes in the bird community. This is one field guide that is sure to become indispensable for all birders.
Key elements in the 6th edition: