<P> It is a large seal, with bulls in the eastern Atlantic populations reaching 2.5--3.3 m (8.2--10.8 ft) long and weighing 170--310 kg (370--680 lb); the cows are much smaller, typically 1.6--2.0 m (5.2--6.6 ft) long and 100--190 kg (220--420 lb) in weight . Individuals from the western Atlantic are often much larger, males reaching 400 kg (880 lb) and females weighing up to 250 kg (550 lb). It is distinguished from the harbor seal by its straight head profile, nostrils set well apart, and fewer spots on its body . Gray seals lack external ear flaps and characteristically have large snouts . Bull Greys have larger noses and a less curved profile than common seal bulls . Males are generally darker than females, with lighter patches and often scarring around the neck . Females are silver grey to brown with dark patches . </P> <P> In the United Kingdom and Ireland, the grey seal breeds in several colonies on and around the coasts . Notably large colonies are at Donna Nook in Lincolnshire, the Farne Islands off the Northumberland Coast (about 6,000 animals), Orkney and North Rona . off the north coast of Scotland, Lambay Island off the coast of Dublin and Ramsey Island off the coast of Pembrokeshire . In the German Bight, colonies exist off the islands Sylt and Amrum and on Heligoland . </P> <P> In the Western North Atlantic, the grey seal is typically found in large numbers in the coastal waters of Canada and south to about New Jersey in the United States . In Canada, it is typically seen in areas such as the Gulf of St. Lawrence, Newfoundland, the Maritimes, and Quebec . The largest colony in the world is at Sable Island, NS . In the United States it's found year round off the coast of New England, in particular Maine and Massachusetts, and slightly less frequently in the Middle Atlantic States . Archaeological evidence confirms grey seals in southern New England with remains found on Block Island, Martha's Vineyard and near the mouth of the Quinnipiac River in New Haven, Connecticut . Its natural range now extends much further south than previously recognized with confirmed sightings in North Carolina . Also, there is a report by Farley Mowat of historic breeding colonies as far south as Cape Hatteras, North Carolina . </P> <P> An isolated population exists in the Baltic Sea, forming the H. grypus balticus subspecies . </P>

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