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The crested auklet (Aethia cristatella) is a small seabird of the family Alcidae, distributed throughout the northern Pacific and the Bering Sea. The species feeds by diving in deep waters, eating krill and a variety of small marine animals. It nests in dense colonies of up to 1 million individuals in the Bering Sea and the Sea of Okhotsk.
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.
Due to its size, aggressive nature and fierce defence of its nest, the great skua has little to fear from other predators. While fledglings can fall prey to rats, cats or the Arctic fox, healthy adults are threatened only by greater raptors such as the golden eagle, the white-tailed eagle, and more rarely, at sea by the orca.
The brown noddy is a colonial bird, usually nesting on cliffs, trees, or bushes. It occasionally lays its eggs on the bare ground. The nest itself is usually a platform nest, made of sticks and twigs. [9] In their nuptial displays, the female and male bow and nod to each other.
Two nests found in Washington were located only 150 feet (46 m) apart. Not all mature adults nest every year. [13] The clutch is a single egg. The nestlings fledge in 28 days. The young remain in the nest longer than other alcids and molt into their juvenile plumage before leaving the nest. [12] Fledglings fly directly from the nest to the ...
Seabird eggs have also long been an important source of food for sailors undertaking long sea voyages, as well as being taken when settlements grow in areas near a colony. Eggers from San Francisco took almost half a million eggs a year from the Farallon Islands in the mid-19th century, a period in the islands' history from which the seabird ...
Beach crews have found the first sea turtle nest on the Mississippi mainland in four years. A Harrison County Sand Beach crew that was cleaning up found what appeared to be turtle tracks just east ...
Seabird egging has been banned in mainland Finland since 1962. [9] In Iceland it is legal to harvest eggs from black-headed, great black-backed, lesser black-backed (Larus fuscus), herring (Larus argentatus argenteus), and glaucous gulls' nests through 1 June. [9] Great black-backed gull (Larus marinus) sitting on a nest of eggs in Sweden in 2016