"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. Developed by 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. An indispensable reference, it covers more than 800 species, with nearly 5,000 full-color photographs of birds in their natural habitat, often with four or five photographs for each species. For ease of use, the book includes a glossary and a robust index, and is arranged according to the American Ornithological Society's 2019 Birds of North and Middle America Checklist--with birds sorted by taxonomic orders and grouped by family, so that related species are presented together. Range maps, reflecting the impacts of climate change, accompany nearly every species, along with a physical description, information on voice, nesting, habitat, similar species, and an important new category on conservation status. Essays by leading scholars in each field provide holistic insights into the world of birds. Whether trying to determine which owl is interrupting your dinner, or tracking down all of the wood warblers that arrive in spring, readers will come to rely on this work of remarkable breadth, depth, and elegance. It is a must-have reference for the library of any birder, and is certain to become the number-one guide in the field"-- Provided by publisher.