Overall size of the bird was quite small in comparison to Great Blues, although none were present to give comment. The periods of arrival, residence, and departure were nearly similar in the following year. Number observed: 25. The great black-backed gull (Larus marinus), mistakenly called greater black-backed gull by some, is the largest member of the gull family. The legs are pink. Juveniles with pale head, boldly spotted back and heavier bill than Lesser Black-backed and Herring Gull. Winter plumage with streaked head and neck. Tags: Northumberland Farne islands Huge Staple island Larus marinus Wildlife and nature Great Black-backed Gull Laridae Nikon D850 Nikon 500 F4 Voters: , Saastad , IamDora , Badgerfred and 57 more The 3 Laughing Gulls and one Ring-billed Gull (between the two big gulls) seem small. The Sibley Guide to Birds. References: David Allen Sibley. The great black-backed gull is the largest gull in the world! The sizes of albatrosses vary depending on the species. Great Black-backed Gull ( Larus marinus ) 8R6 1st cycle (1CY), August 30 2011, Hampton Beach, New Hampshire. The bill is yellow with a red spot near the tip. Sound: Can be identified from the low pitch alone. The smallest gull is about 29 cm (11.5 inches), while the largest gull is approximately 76 cm (30 inches). Great Black-backed, Glaucous-winged, and Glaucous Gulls. The Great Black-backed Gull is a very large gull with dark gray upperparts and a white head and underparts. Due to their size, they have few predators, but may occasionally make a tasty snack for white-tailed eagles, sharks and killer whales at sea. Great Black-backed Gull. Many birders describe Herring Gulls as having an aggressive expression, while Great Black-backed Gull (Larus marinus) 5T9 1cy-3cy, August 27 2011 - June 29 2013, Sandy Point - Plum Island, Ipswich, MA. Underside of flight feathers smoky grey. They can range from 0.9m - 1.3m (35 in – 51 in). Great size comparison between the gulls here. Herring shows a long sloping forehea d an a fairly substantial bill. Size. Yellow legs, black to dark grey back (regional variations) and black primaries with only small white spots. The Great Black-backed Gull lives up to its name. But in 1832, not only October, but the months of November and December passed away without Gull's making his appearance, and I of course despaired of again seeing him. (Great Black Backed Gull) This is the largest gull and is easy to distinguish with it's huge size, black back, powerful head and bill even in comparison to the Lesser Black Backed Gull. In flight, the primaries are extensively black with a large white spot. Number observed: 200. Double-crested Cormorant. 1986. It just goes to show that size is a finicky thing in identification, and analysis of all marks available for study is essential! More They have a wingspan of 2m - … Thayer's Gull s typically hav e mor rounded head with shorter bills. A very aggressive hunter, pirate and scavenger, it breeds on the European and North American coasts and islands of the North Atlantic and is fairly sedentary, though some move farther south or inland to large lakes or reservoirs. We definitely observed a Black-headed Gull that was very much on the small end of the size ranges given for Black-headed Gull. The Great Black Backs may be found well out to sea as well a along the coasts. Clearly deeper than Lesser Black-backed and Herring Gull. The Great Black-backed Gull once more arrived at Canonmills garden.' The sizes of gulls vary depending on the species. A very heavy gull with a heavy bill and broad wings. P J Grant. 2000. HERRING GULL Wings THAYER'S GULL Compare these gulls. Here it is with a first winter Lesser Black-Backed Gull (left), another unusual gull for here, but not as uncommon as the Great Black-backed Gull. Great black-backed Gull Female - The sexes are similar. Large white windows at tips of primaries, and broad white trailing edge of wing. Generally more slender than Herring Gull and Great Black-backed, with longer and more narrow wings, and longer legs.