Published in association with America's preeminent authority, the Smithsonian Institution. This comprehensive reference to the birds of North America includes full-page profiles of more than 930 species -- all the birds known to breed in the United States or Canada, as well as regular visitors and vagrants to the continent. Smithsonian Birds of North America provides essential identification tips for each species together with fascinating information on feeding and behavior, breeding, and nesting habits. Identification. Full-page species profiles combine a precise description and annotated photographs to highlight the key field marks of the adult male. Other plumages are portrayed with photographs or artworks if they differ significantly. Species similar to the one profiled are shown with a brief summary of the key differences. An explanation of the typical flight pattern of each species includes both schematic artworks and a verbal description. Life histories. Knowledge of behavior can be critical to differentiate between similar species, and an understanding of life histories enhances the total birding experience. Each profile includes a description of the typical vocalizations, feeding behavior, breeding, nesting, population, and conservation concerns. A range map shows each bird's occurrence in North America during summer, winder, and on migration.