With them come their prime enemies, the greater black-backed gulls.

Thacher Island is home to herring and great black-backed gulls.

The great black-backed gull is additionally hunted for sport in Denmark.

The nesting great black-backed gulls took offense at its presence and three or four adults gave chase.

The maximum recorded age for a wild Great Black-backed Gull is 27.1 years.

Range is another good distinguishing feature; the great black-backed gull doesn't show up anywhere in Africa in winter.

During the winter, the Great Black-backed Gull often travels far out to sea to feed.

It will also directly attack and kill other seabirds, up to the size of Great Black-backed Gulls.

One great black-backed gull was seen to gulp down whole, like so many marshmallows, seven tern chicks within 30 minutes.

Double-crested cormorant dominate Swinburne, and great black-backed gulls nest on both islands.

Other birds seen around the bay are cormorants, herring gulls and great black-backed gulls.

The Great Black-backed Gull is bulky and imposing in appearance with a large, powerful bill.

The only species it might be confused with in Europe is the Great Black-backed Gull.

A confusable species in Europe is Great Black-backed Gull.

The Wick of Gossabrough attracts many birds, of note here in particular are the great black-backed gulls.

The remains of Shearwaters killed by the island's population of Greater Black-backed Gulls can also be seen.

Breeding colonies are predated by great black-backed gulls, harriers, corvids, herons and raccoons.

Great Black-backed Gull also feed on land animals, including rats at garbage dumps and even sickly lambs.

Like most gulls, Great Black-backed Gulls are opportunistic feeders.

In some biomes, where large eagles are absent the Great Black-backed Gull may be considered the apex predator.

Ring-billed, Herring and Great Black-backed gulls are abundant as well as various other waterfowl species.

Wildlife includes fallow deer and a great variety of birds including ospreys, hobby, oyster catchers and greater black-backed gulls.

It is considered the North Pacific equivalent of the largest gull species, the Great Black-backed Gull.

Greater Black-backed Gull (L marinus)

Great Black-backed Gull The island also includes one of the largest winter populations of Eider in Newfoundland.

With them come their prime enemies, the greater black-backed gulls.

The remains of Shearwaters killed by the island's population of Greater Black-backed Gulls can also be seen.

Wildlife includes fallow deer and a great variety of birds including ospreys, hobby, oyster catchers and greater black-backed gulls.

Greater Black-backed Gull (L marinus)

Mr. Donovan, who stops by often to check on its progress, said the falcon had killed a greater black-backed gull, a bird larger than the falcon itself.

So alluring is the dump as a food source that the Audubon Society's recent Christmas Bird Count registered 33,500 herring and greater black-backed gulls there.

I can't see a hedgehog putting up much defence against an angry or hungry Great Skua, Arctic skua, raven or greater black-backed gull.

Three species of the pesky scavengers gather year-round at New York's largest airport: the greater black-backed gull, the ring-billed gull, and the herring gull.

Ragged Island provides habitat for a large and diverse population of nesting seabirds, including the: eider duck, black guillemot, greater black-backed gull, herring gull and osprey.

The Great Black-backed Gull (Larus marinus), also known as the Greater Black-backed Gull or, informally, as the Black-back, is the largest member of the gull family.

Following the swans downstream, driving the canoe into the chop and cold spray, we approach the obscure mouth of the creek, flushing a whirling flock of greater black-backed gulls, the largest species of that world-girdling family.

Greater Black-backed (Larus marinus) and Herring Gulls (L argentatus) nest as do Common Shags.

The Great Black-backed Gull (Larus marinus) is known to have a small breeding colony on Gravel Island, and historically on Spider Island.

The 'Great Black-backed Gull', 'Larus marinus', is a very large gull which breeds on the European and North American coasts and islands of the North Atlantic.

The Great Black-backed Gull (Larus marinus), also known as the Greater Black-backed Gull or, informally, as the Black-back, is the largest member of the gull family.

Lesser numbers of Lesser Black-backed Gull Larus fuscus, Great Black-backed Gull Larus marinus and Common Shag Phalacrocorax aristotelis are also to be found.

Predators of the Atlantic Puffin include the Great Black-backed Gull (Larus marinus), the Great Skua (Stercorarius skua), and similar-sized species, which can catch a puffin in flight, or pick off one separated from the colony.

However the blackback was rejected and the females left.

When Titus was four years old a blackback male joined his troop.

Instead, try flounder, especially winter blackback, for that Long Island menu.

Titus, still a blackback, remained subordinate to Beetsme for six years.

Which I think the blackback found quite amusing."

A blackback is a sexually mature male gorilla of up to 11 years of age.

Blackback Barb (Barbus barnardi) is a species of ray-finned fish in the genus Barbus.

The black-backed butterflyfish or blackback butterflyfish Chaetodon melannotus, is a species of butterflyfish (family Chaetodontidae).

She, a cameraman and a tracker (a local expert leading them to the gorillas) were standing on a hillside in Uganda when they were suddenly approached by a blackback.

As suggested by the name blackback land crab, it has a large blackish spot, which, although the exact shape is variable, covers a large part of the central carapace ("back").

The Arctic shrew (Sorex arcticus), also known as the blackback shrew or saddlebacked shrew, is a medium-sized shrew found in Canada and the northern United States.