The MD/DC Records Committee, a branch of the Maryland Ornithological Society that keeps the official bird lists for Maryland and DC, has recently updated its lists. A new species, the Dusky Flycatcher, has been added to the DC list based on a written report from Rock Creek Park in 2003. The addition brings the District's total up to 326. The chronology of birds added to the list can be found here, and recent review decisions can be found here.