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Number of species. This table provides the number of species found in this region, based on the Howard and Moore (2003, rev. 2008) taxonomy. To view the full species list, click on the name of a region.
Checklists Bird Checklists of the World: District of Columbia [archives] http://avibase.bsc-eoc.org/checklist.jsp?region=usdc Official List of the Birds of the District of Columbia http://www.mdbirds.org/mddcrc/pdf/dclist.pdf Bird Checklists of District of Columbia http://www.npwrc.usgs.gov/resource/birds/chekbird/r5/11.htm DC Checklist http://www.mdbirds.org/mddcrc/dclist.html
Checklists