Search results
Results from the WOW.Com Content Network
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. Competition can be strong both within species and between species, with aggressive species such as sooty terns pushing less dominant species out of the most desirable nesting spaces. [ 55 ]
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.
Furthermore, it has been proposed that birds that nest in high densities, as seabirds do in breeding colonies, have higher rates of EPCs and EPFs than birds that do not nest colonially. [46] Despite this, Westneat and Sherman (1997) [49] found no significant correlation between nesting density and EPFs in a meta-analysis. Many seabird species ...
The National Park of American Samoa is the only national park in American Samoa. Various species of seabirds nest on Pola Island, off Tutuila. Is American Samoa part of the USA?
A few species nest in small or dispersed groups, but most breed in colonies of up to a few hundred pairs, often alongside other seabirds such as gulls or skimmers. [5] Large tern species tend to form larger colonies, [ 18 ] which in the case of the sooty tern can contain up to two million pairs.
The Pribilof Islands are a birdwatching attraction, home to many species that do not fly in North America beyond Alaska. [8] [clarification needed] More than 210 species have been identified, [9] and an estimated two million seabirds nest there annually. St. Paul is particularly popular, having a high cliff wall, known as Ridge Wall, above 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.
Seabirds are turning up coated in oil along Pacific Northwest coastlines, and wildlife officials are trying to figure out why. An oiled common murre was first discovered May 19, ...