National Capital Parks-Central
- Bird checklist.
- http://www.npwrc.usgs.gov/resource/birds/chekbird/r5/washdc.htm

A DC Birding Blog
- Personal observations of birds in the Washington, D.C. area.
- http://dendroica.blogspot.com/

Birding in Washington, D.C.
- Site guides to 7 of the best birding spots in DC.
- http://www.mdbirds.org/sites/dcsites/dcbirds.html

Maryland/DC Records Committee
- Evaluates records of rare birds. Checklist, review list, sighting documentation guide, reporting forms, and reports.
- http://www.mdbirds.org/mddcrc/rcindex.html

Mary Scott's Birding DC
- Travelogue of two sites in DC.
- http://www.birdingamerica.com/DC/