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The diet of the Arctic tern varies depending on location and time, but is usually carnivorous. In most cases, it eats small fish or marine crustaceans. [10] [19] Fish species comprise the most important part of the diet, and account for more of the biomass consumed than any other food.
Terns are generally long-lived birds, with individuals typically returning for 7–10 breeding seasons. Maximum known ages include 34 for an Arctic tern and 32 for a sooty. Although several other species are known to live in captivity for up to 20 years, their greatest recorded ages are underestimates because the birds can outlive their rings. [5]
Laridae is a family of medium to large seabirds and includes gulls, terns, kittiwakes, and skimmers. They are typically grey or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet.
The common tern may attempt to steal fish from Arctic terns, [98] but might itself be harassed by kleptoparasitic skuas, [99] laughing gulls, [100] roseate terns, [101] or by other common terns while bringing fish back to its nest. [98] In one study, two males whose mates had died spent much time stealing food from neighbouring broods. [102]
Arctic terns breed in the arctic and subarctic and winter in Antarctica. Like many birds, seabirds often migrate after the breeding season . Of these, the trip taken by the Arctic tern is the farthest of any bird, crossing the equator in order to spend the Austral summer in Antarctica.
With wildfires and increased warming, scientists say the Arctic’s tundra is now a carbon source. The region had been a carbon sink for thousands of years (NOAA Climate.gov; Arctic Report)
Its diet consists primarily of small fish and crustaceans. It is very similar in appearance to the closely related Arctic tern, but it is stockier, and it is in its breeding plumage in the southern summer, when the Arctic tern has shed old feathers to get its non-breeding plumage. The Antarctic tern does not migrate like the Arctic tern does ...
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