Full name of this photo database is Visual Resource for Ornithology. Order images of every North American bird species.

Nonprofit organization describes its conservation programs, and furnishes an extensive guide to information about birds around the world.

Listen to the Sound of the Week, or search the sound database. Located at Cornell's Laboratory of Ornithology.

Access data from waterfowl surveys conducted in Illinois and western Kentucky. Requires Acrobat Reader.

Conservation program seeks to identify and protect bird habitats. Read a FAQ, newsletters and press releases.

Offered by the Northern Prairie Wildlife Research Center, this guide lists terms used in the field of avian conservation biology.

Resource guide provides access to over 1160 informative sites devoted to the study of wild birds.

Guide to the science of wild birds provides photos, lectures, birding tips and details regarding avian taxonomy.

Listen to the calls of geese, raptors, woodpeckers, thrushes, warblers, ducks, swallows, finches, jays and shorebirds that live in New York.

View maps that depict the distribution of various bird species in the state of Washington. From the Washington Department of Fish and Wildlife.