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The black-throated loon (Gavia arctica), also known as the Arctic loon and the black-throated diver, is a migratory aquatic bird found in the northern hemisphere, primarily breeding in freshwater lakes in northern Europe and Asia. It winters along sheltered, ice-free coasts of the north-east Atlantic Ocean and the eastern and western Pacific Ocean.
Their ability to spread further south is restricted as their prey hunting method, pursuit diving, becomes less efficient in warmer waters. The speed at which small fish (which along with krill are the auk's principal prey) can swim doubles as the temperature increases from 5 to 15 °C (41 to 59 °F), with no corresponding increase in speed for ...
These birds forage for food like other auks by swimming underwater. They mainly eat crustaceans , especially copepods , of which a 150 g (5.3 oz) bird requires ~60,000 individuals per day (equivalent to 30 g [1.1 oz] of dry food weight), [ 19 ] but they also eat small invertebrates such as mollusks , as well as small fish.
Adelie penguins in Antarctica. This is a list of the bird species recorded in Antarctica.The avifauna of Antarctica include a total of 63 species, of which 1 is endemic.This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of The Clements Checklist of Birds of the World, 2022 edition.
The most widely distributed member of the loon or diver family, it breeds primarily in Arctic regions, and winters in northern coastal waters. Ranging from 55 to 67 centimetres (22 to 26 in) in length, the red-throated loon is the smallest and lightest of the world's loons. In winter, it is a nondescript bird, greyish above fading to white below.
The yellow-billed loon is an Arctic species, breeding primarily along the coasts of the Arctic Ocean as far north as 78° N and wintering on sheltered coastal waters of the northern Pacific Ocean and the northwestern coast of Norway. [2] It has been recorded as a breeding bird in Russia, Canada and the United States. [1]
The northern fulmar (Fulmarus glacialis), fulmar, [2] or Arctic fulmar [3] is an abundant seabird found primarily in subarctic regions of the North Atlantic and North Pacific oceans. There has been one confirmed sighting in the Southern Hemisphere , with a single bird seen south of New Zealand . [ 4 ]
Steller's eider (Polysticta stelleri) is a migrating Arctic diving duck that breeds along the coastlines of eastern Russia and Alaska.It is the rarest, smallest, and fastest flying of the eider species.