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The plumage of seabirds is thought in many cases to be for camouflage, both defensive (the colour of US Navy battleships is the same as that of Antarctic prions, [20] and in both cases it reduces visibility at sea) and aggressive (the white underside possessed by many seabirds helps hide them from prey below). The usually black wing tips help ...
Many seabirds remain at sea for several consecutive years at a time, without ever seeing land. Breeding is the central purpose for seabirds to visit land. The breeding period (courtship, copulation, and chick-rearing) is usually extremely protracted in many seabirds and may last over a year in some of the larger albatrosses ; [ 1 ] [ 2 ] this ...
Gunnison Island is located in the northwest quadrant of the Great Salt Lake in Box Elder County, Utah, United States, approximately 55 miles (89 km) northwest of Salt Lake City and about 6 miles (9.7 km) east from the lake's western shore, and is best known as an important rookery for the American white pelican (Pelecanus erythrorhynchos).
The two fulmars are closely related seabirds occupying the same niche in different oceans. The northern fulmar ( Fulmarus glacialis ) or just fulmar lives in the North Atlantic and North Pacific , whereas the southern fulmar , ( Fulmarus glacialoides ) is, as its name implies, a bird of the Southern Ocean .
The turkey vulture has a red head. The black vulture has a grey head. Although not a water bird, a flock of black vultures at the Myakka River State Park, southeast of Sarasota, has been seen bathing at the edge of the lake and then drying out their wings in the same way as cormorants like the Florida anhinga.
The world's oldest known wild bird has laid an egg at the impressive age of 74, the U.S. Fish and Wildlife Service (USFWS) for the Pacific Region reports.. Wisdom, a Laysan albatross, was filmed ...
They are also long-lived: a Manx shearwater breeding on Copeland Island, Northern Ireland, was (as of 2003/2004) the oldest known wild bird in the world; ringed as an adult (when at least 5 years old) in July 1953, it was retrapped in July 2003, at least 55 years old (also now exceeded, by a Laysan albatross). Manx shearwaters migrate over ...
The nest is a shallow scrape lined with stone chips. It is built in a spot sheltered from the wind on a ledge or scree slope or in a crevice. A single, white egg is laid during late November or early December. It measures 76 by 51 mm (2.99 by 2.01 in) and weighs about 103 g (3.6 oz). [9]