Smithsonian Handbooks: Birds of North America: Western Region (Smithsonian Handbooks)Published in association with America's preeminent authority, the Smithsonian Institution, this comprehensive handbook to the birds of North America: Western Region includes 696 species all birds known to breed east of the 100th meridian on the United States and Canada, as well as regular visitors and vagrants to this region. The Smithsonian Handbook is the first identification guide that includes details of the bird's life history in a concise and