American Birding Association Field Guide to Birds of Washington Weber places particular importance on

Weber places particular importance on specimen records and is critical of Wahl et als uneven citation of the literature on Washington's avifauna

as well as lazy

and none of the three subspecies was diagnosable from both other subspecies by any plumage character using the 75% rule

In addition to descriptions of over 230 birding sites

American Birding Association Field Guide to Birds of Washington Weber places particular importance onA photographic field guide with one bird featured per page. Each concise species account includes measurements, scientific name, identification description, voice, behavior, and the habitat it is likely to be found in. Celebrate the birds of the Evergreen State with the American Birding Association. The most comprehensive and up to date photographic field guide devoted to the birds of Washington: 505 beautiful color photographs featuring 299 bird