Distribution from BirdLife International and Cornell
The Great Black-backed Gull is the largest member of the gull and tern family Laridae and breeds on the coasts of the North Atlantic, Northern Europe and North America. They will eat a wide range of organisms from fish and molluscs to material found on refuge tips.
The Greart Black-backed Gull has pink legs while the legs of the Lesser Black-backed Gull are yellow.