Harp seals are rare visitors to Maine’s waters, not residents, and all 10 of the state’s occurrence records land in the coldest months of the year, when wandering seals from far north turn up along the coast.
Born on ice hundreds of miles north
This species breeds on drifting pack ice off Newfoundland and Labrador and in the Gulf of St. Lawrence, hundreds of miles from Maine. Young seals disperse widely once weaned, and some end up far south of where they were born. A harp seal hauled out on a Maine ledge or sandbar is usually one of these young animals resting during a long-distance wander, not a sign of any breeding group in the state.
A January-to-April pattern
Every one of Maine’s harp seal records falls between January and April, matching the season when young seals are most likely to have drifted this far from their birthplace. By summer, Maine’s records go quiet entirely, as the animals that do turn up here move back north.
Status in Maine
Maine doesn’t list the harp seal as introduced, so its scattered records here are treated as native to the state’s waters, even though the species’ real home is the ice off Newfoundland and the Gulf of St. Lawrence, far north of anywhere it’s been recorded in Maine.
