White-tailed deer are the most frequently recorded large mammal in this DC dataset, with 1,442 records concentrated in Rock Creek Park and on Theodore Roosevelt Island, plus scattered reports along the Potomac, Kenilworth Park and Aquatic Gardens, and the Anacostia. Rock Creek Park alone accounts for the densest cluster of reports anywhere in the District.
Deer here browse the same mix of leaves, twigs, and acorns they would anywhere, but Rock Creek Park’s unbroken tree canopy running through the middle of the city gives them a rare corridor of cover that most urban deer never get. Theodore Roosevelt Island’s isolation, cut off from mainland traffic by the Potomac, has let a resident group hold on largely undisturbed.
Records show up in every month, with reports climbing through late spring and summer as fawns are born and deer move more to feed. That density of reports also reflects Rock Creek Park’s popularity with walkers and cyclists, since a well-used trail generates far more sightings than an equally deer-rich but less-visited corner of the city.
Full species profile
