Information about the Flight Calls of Migratory Birds (Eastern North American Landbirds) CD-ROM and the Dickcissel night flight call monitoring project.
Project developed by the Cornell Lab of Ornithology and the National Audubon Society, provides a simple way to keep track of the birds you see anywhere in North America.
Checklists and links for all US states, Canadian provinces, and outlying areas.
A membership institution interpreting and conserving the earth's biological diversity through research, education, and citizen science focused on birds.
Photographs of many species by Peter LaTourrette.
Notes, distribution maps, and photos of current rarities. Includes gull section and bird quizzes.
Programs to protect critical habitats for birds throughout the Western Hemisphere. Species abstracts, fact sheets, and links.
Links and list of bird spectacles.
Daily reports of migrant hawks seen at many North American hawk watch sites.
Audubon's images and original text descriptions from an 1840 (First Octavo Edition) of Audubon's complete seven volume text.