BellaOnline - Birding - General information and articles about birding, attracting birds, and common birds of the US.
Bird Checklists of the United States - Hundreds of seasonal occurrence bird checklists for state, federal, and private management areas, nature preserves, and other areas of special interest in the United States.
BirdPerch - Photo gallery, magazine photo index, and list of places to bird.
Birds: Bellwethers of Watershed Health - Educational resource on the importance of birds as watershed health indicators and how to improve watershed conditions.
Birds in Nature - Photographs of wild birds by Richard Ditch. Includes an extensive tutorial and information on many aspects of bird photography.
BirdWatch - PBS television series on birds and birdwatching.
New England Seabirds and Pelagic Birding - Conservation news, checklists of birds and mammals, birding spots, pelagic trips and trip reports, seabird breeding colonies, and tips for a first pelagic trip.
Nutty Birdwatcher - Eastern U.S. site with tips for backyard birding, bird migration table, and identification guides.
Scouting for Birds - Promotes the Boy Scouts' Bird Study Merit Badge, with guides for scouts and teachers.
SEPART-L - Archives and subscription management for the e-mail group for discussion of neotropical migratory birds in the southeastern United States.
State Birds - Official birds for each US state with illustrations and descriptive text by Audubon.
State Birds - The official state birds of every state and tips on how to find them.
Trochilids - Winter western hummingbird reports from Mississippi, Louisiana, and the eastern US.
- Comprehensive information about United States birds.