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Arctic terns are long-lived birds that spend considerable time raising only a few young, and are thus said to be K-selected. [33] A 1957 study in the Farne Islands estimated an annual survival rate of 82%. [34]
This is an aggregate group of birds that live in the Arctic. Subcategories. This category has the following 5 subcategories, out of 5 total. A.
The global population exceeds 8.2 million individuals, while the North American population is estimated at 2.9 million birds. However, an accurate assessment of the number of birds is difficult, since those on the surface of the colony and in the nearby sea form only a small proportion of the variable and poorly understood population. [1]
A high-latitude species, the gyrfalcon breeds on the Arctic coasts and tundra, the islands of northern North America and the Eurosiberian region, where it is mainly a resident species. Some gyrfalcons disperse more widely after the breeding season or in winter, and individual vagrancy can take birds for long distances. Its plumage varies with ...
An Arctic goose fell a few thousand miles short of its destination and wound up in a Southern California park, wildlife rescuers reported. ... the birds are normally found in the chilly Arctic and ...
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 ]
It is an Arctic specialist, with a circumpolar Arctic breeding range throughout the northern hemisphere. There are small isolated populations on a few high mountain tops south of the Arctic region, including the Cairngorms in central Scotland and the Saint Elias Mountains on the southern Alaska-Yukon border, as well as the Cape Breton Highlands ...
As arctic breeding grounds continue to warm, red knot body size has decreased, and less success for survival of birds born in warmer years is reported. Even more significantly, their wintering areas in the tropics have become more stabilized, resulting in shorter bill birds (likely due to the fact that stable conditions breed greater ecological ...