Baltimore County Police Department Marine Unit officers last week spotted between 10 and 15 dolphins swimming in Hawk Cove at Hart-Miller Island, located in the Chesapeake Bay near the mouth of Middle River.
In a video shared by the police department on Twitter, three or four dolphins can be seen swimming to the surface briefly before going back underwater.
A dead dolphin was spotted in the harbor near Canton in late May, a few weeks after the National Aquarium said they were tracking a “distressed” dolphin that had been spotted in the harbor.
The Chesapeake Bay Dolphin Watch, a program of the University of Maryland Center for Environmental Science, tracks dolphins that enter the bay and gets volunteers to report any dolphin sightings online or through an app.
A search on the app showed three dolphin sightings were reported on the app on July 1, between 11:45 a.m. and 4:30 p.m. The area of Hawk Cove appeared to be the furthest north any dolphin sightings have been reported as of July 8.