Search results
Results from the WOW.Com Content Network
Seabirds (mostly northern fulmars) flocking at a long-lining vessel. Some seabird species have benefited from fisheries, particularly from discarded fish and offal. These discards compose 30% of the food of seabirds in the North Sea, for example, and compose up to 70% of the total food of some seabird populations. [76]
In most seabird colonies several different species will nest on the same colony, often exhibiting some niche separation. Seabirds can nest in trees (if any are available), on the ground (with or without nests), on cliffs, in burrows under the ground and in rocky crevices. Colony size is a major aspect of the social environment of colonial birds.
The birds nest in large colonies [3] [7] [18] [21] [22] Recently, they have started nesting on rooftops and buildings. [3] Both sexes are involved in the nest-building process. [ 7 ] A single white egg , 74 mm × 51 mm (2.9 in × 2.0 in), [ 7 ] is incubated for a period of 50 to 54 days, by both sexes.
The stated aim of the authors is to enable seabirds found in Australian waters to be correctly identified and to record the known facts of their habits. Seabirds covered include the penguins, albatrosses and other petrels, tropicbirds, frigatebirds, gannets, cormorants, pelicans, skuas, gulls and terns, 104 species in all. With regard to the ...
Where it nests on the tundra in the far north, the Arctic skua (Stercorarius parasiticus) is a terrestrial predator, but at lower latitudes, it is a specialised kleptoparasite, concentrating on auks and other seabirds. It harasses puffins while they are airborne, forcing them to drop their catch, which it then snatches up.
The two fulmars are closely related seabirds occupying the same niche in different oceans. The northern fulmar ( Fulmarus glacialis ) or just fulmar lives in the North Atlantic and North Pacific , whereas the southern fulmar , ( Fulmarus glacialoides ) is, as its name implies, a bird of the Southern Ocean .
The Hebrides (Outer Hebrides in orange). The flora and fauna of the Outer Hebrides in northwest Scotland comprises a unique and diverse ecosystem.A long archipelago, set on the eastern shores of the Atlantic Ocean, it attracts a wide variety of seabirds, and thanks to the Gulf Stream a climate more mild than might be expected at this latitude.
They nest in burrows and often give eerie contact calls on their night-time visits. They lay a single white egg. They lay a single white egg. The chicks of some species, notably short-tailed and sooty shearwaters, are subject to harvesting from their nest burrows for food, a practice known as muttonbirding , in Australia and New Zealand.