Birding Tidbits
- Crossword puzzles.
- https://www.epsb.net/~slivings/

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.
- http://www.npwrc.usgs.gov/resource/birds/chekbird/

All Experts Birding
- A panel of US birders volunteer to answer questions.
- http://www.allexperts.com/browse.cgi?catLvl=3&catID=1435

BirdingGuide.com
- Information, resources, and links for bird watching.
- http://www.birdingguide.com/

Birdwatching in the National Parks
- Links to articles and checklists for finding birds on National Park Service land throughout the US.
- http://www.nps.gov/oia/NPSBirds.html

Robert Winkler - Nature Writing
- Excerpts, reviews, bird photos, and links from the author of "Going Wild: Adventures with Birds in the Suburban Wilderness".
- http://pages.cthome.net/rwinkler/

Northern Prairie Wildlife Research Center
- Large number of articles with detailed information about United States birds.
- http://www.npwrc.usgs.gov/resource/taxa_n.htm

BirdCentral
- Photo gallery by Jim Rosso; birds in the classroom project.
- http://birdcentral.net/

Trochilids
- Winter western hummingbird reports from Mississippi, Louisiana, and the eastern US.
- http://www.trochilids.com/

Birds in Nature
- Photographs of wild birds by Richard Ditch. Includes an extensive tutorial and information on many aspects of bird photography.
- http://home.earthlink.net/~richditch/

SEPART-L
- Archives and subscription management for the e-mail group for discussion of neotropical migratory birds in the southeastern United States.
- http://listserv.uark.edu/archives/separt-l.html

Birds: Bellwethers of Watershed Health
- Educational resource on the importance of birds as watershed health indicators and how to improve watershed conditions.
- http://www.epa.gov/watertrain/birds/

Identification Issues
- Don Roberson's detailed discussions and photos of 10 ID problems, mainly dealing with California birds.
- http://montereybay.com/creagrus/identification.html

BirdPerch
- Photo gallery, magazine photo index, and list of places to bird.
- http://www.birdperch.com

Birdwatch America
- Supports the business of birding in the US.
- http://www.birdwatchamerica.com/

American Bird Conservancy
- A not-for-profit dedicated to the conservation of wild birds and their habitats in the Americas.
- http://www.abcbirds.org/

State Birds
- Official birds for each US state with illustrations and descriptive text by Audubon.
- http://www.50states.com/bird/

Nutty Birdwatcher
- Eastern U.S. site with tips for backyard birding, bird migration table, and identification guides.
- http://nuthatch.birdnature.com/

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.
- http://www.neseabirds.com/

BBIRD - Breeding Biology Research and Monitoring Database
- A national, cooperative program that uses standardized field methodologies for studies of nesting success and habitat requirements of breeding birds.
- http://pica.wru.umt.edu/BBIRD/