See also:

• Regional: North America: United States: Recreation and Sports  (67)
• Regional: North America: United States: Science and Environment  (80)
• Society: Issues: Environment: Organizations: National Audubon Society: Regional: United States  (306)

• All Experts Birding - A panel of US birders volunteer to answer questions.
• American Bird Conservancy - A not-for-profit dedicated to the conservation of wild birds and their habitats in the Americas.
• 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.
• BirdCentral - Photo gallery by Jim Rosso; birds in the classroom project.
• Birding Tidbits - Crossword puzzles.
• BirdingGuide.com - Information, resources, and links for bird watching.
• 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 a tutorial and information on many aspects of bird photography.
• Birdwatch America - Supports the business of birding in the US.
• Birdwatching in the National Parks - Links to articles and checklists for finding birds on National Park Service land throughout the US.
• Identification Issues - Don Roberson's detailed discussions and photos of 10 ID problems, mainly dealing with California birds.
• 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.
• Northern Prairie Wildlife Research Center - Large number of articles with detailed information about United States birds.
• Nutty Birdwatcher - Eastern U.S. site with tips for backyard birding, bird migration table, and identification guides.
• Robert Winkler - Nature Writing - Excerpts, reviews, bird photos, and links from the author of "Going Wild: Adventures with Birds in the Suburban Wilderness".
• 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 - The official state birds of every state and tips on how to find them.
• State Birds - Official birds for each US state with illustrations and descriptive text by Audubon.
• Trochilids - Winter western hummingbird reports from Mississippi, Louisiana, and the eastern US.
• Ya Know You're a Birder - Bird comics and backyard birding.