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Larus Hyperboreus-USFWS
''Larus'' is a large genus of gulls with worldwide distribution (by far the greatest species diversity is in the Northern Hemisphere). Many of its species are abundant and well-known birds in their ranges. Until about 2005–2007, most gulls were placed in this genus, but this arrangement is now known to be polyphyletic, leading to the resurrection of the genera ''Chroicocephalus'', ''Ichthyaetus'', '' Hydrocoloeus'', and ''Leucophaeus'' for many other species formerly included in ''Larus''. They are in general medium-large birds, typically pale grey to black above and white below and on the head, often with black markings with white spots ("mirrors") on their wingtips and in a few species also some black on the tail. They have stout, longish bills and webbed feet; in winter, the head is often streaked or smudged dark grey. The young birds are brown, and take three to five years to reach adult plumage, with subadult plumages intermediate between the young and adult. The taxo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Black-backed Gull
The great black-backed gull (''Larus marinus'') is the largest member of the gull family. It is a very aggressive hunter, pirate, and scavenger which breeds on the coasts and islands of the North Atlantic in northern Europe and northeastern North America. Southern populations are generally sedentary, while those breeding in the far north (northern Norway, northwest Russia) move farther south in winter. A few also move inland to large lakes and reservoirs. The adult has a white head, neck and underparts, dark blackish-grey wings and back, pink legs and the bill yellow with a red spot. Taxonomy The great black-backed gull was one of the many species originally described by Carl Linnaeus in his 1758 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', and it still bears its original name of ''Larus marinus''. The scientific name is from Latin. ''Larus'' appears to have referred to a gull or other large seabird. The specific name ''marinus'' means "marine", or when t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Systema Naturae
' (originally in Latin written ' with the Orthographic ligature, ligature æ) is one of the major works of the Sweden, Swedish botanist, zoologist and physician Carl Linnaeus (1707–1778) and introduced the Linnaean taxonomy. Although the system, now known as binomial nomenclature, was partially developed by the Bauhin brothers, Gaspard Bauhin, Gaspard and Johann Bauhin, Johann, Linnaeus was the first to use it consistently throughout his book. The first edition was published in 1735. The full title of the 10th edition (1758), which was the most important one, was ', which appeared in English in 1806 with the title: "A General System of Nature, Through the Three Grand Kingdoms of Animals, Vegetables, and Minerals, Systematically Divided Into their Several Classes, Orders, Genera, Species, and Varieties, with their Habitations, Manners, Economy, Structure and Peculiarities". The 10th edition of Systema Naturae, tenth edition of this book (1758) is considered the starting point of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larus Atlanticus
Olrog's gull (''Larus atlanticus'') is a species of gull found along the Atlantic coast of southern Brazil, Uruguay, and northern Argentina. It was formerly considered a subspecies of the very similar '' L. belcheri''. It is a large gull with a black back and wings, white head and underparts, a black band in the otherwise white tail, and a yellow bill with a red and black tip. Nonbreeding adults have a blackish head and a white eye ring. The species is named after Swedish-Argentine biologist Claes C. Olrog. It has a rather restricted breeding range and is threatened by habitat loss, and the IUCN has rated it as being "near threatened". Description Olrog's gull is a large gull with a white head, neck, rump, breast, and belly. The back and wings are black except for a white trailing edge to the wings. The tail is white with a broad black band at the back. The beak is yellow with a black band and red tip. The eyes are brown with a red orbital ring and the legs and feet are dull yell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larus Crassirostris
The black-tailed gull (''Larus crassirostris'') is a gull native to shorelines of East Asia. Description The black-tailed gull is medium-sized (46 cm) (19 Inches), with a wingspan of 126–128 cm (49.6 - 50.3 Inches). It has yellow legs and a red and black spot at the end of the bill. Males and females have identical plumage and features, although males are larger in size than females. This gull takes four years to reach full adult plumage. As the name suggests, it has a black tail. The bird has a cat-like call, giving it its Japanese name — ''umineko'' (海猫, "sea cat"), and Korean name — ''gwaeng-yi'' gull, which means "cat" gull. In Hachinohe their calls are one of the 100 Soundscapes of Japan. Distribution and habitat The species is resident to coastlines of the East China Sea, Japan, Manchuria and the Kuril Islands. It is a vagrant to Alaska and North America and has been found in the Philippines. In Japan The bird is common in Japan, nesting from Hokkaido ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larus Belcheri
Belcher's gull (''Larus belcheri''), also known as the band-tailed gull, is a bird in the family Laridae found along the Pacific coast of South America. It formerly included the very similar Olrog's gull as a subspecies, but that bird occurs on the Atlantic coast of South America and is now accepted as ''Larus atlanticus''. Belcher's gull is a medium-sized gull with a blackish mantle, white head and underparts, a black band on the otherwise white tail, and a yellow bill with a red and black tip. Non-breeding adults have a brownish-black head and a white eye-ring. The name of this bird commemorates the British explorer Sir Edward Belcher, who performed survey work on the Pacific coast of South America. Description Belcher's gull grows to a length of about . The sexes are similar in appearance, and in the breeding season, the adult has a white head and very pale grey neck and underparts. The mantle and back are greyish-black, and the tail is white with a broad black subterminal ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Latham (ornithologist)
John Latham (27 June 1740 – 4 February 1837) was an English physician, natural history, naturalist and author. His main works were ''A General Synopsis of Birds'' (1781–1801) and ''A General History of Birds'' (1821–1828). He was able to examine specimens of Australian birds that reached England in the final twenty years of the 18th century, and was responsible for providing English names for many of them. He named some of Australia's most famous birds, including the emu, sulphur-crested cockatoo, wedge-tailed eagle, superb lyrebird, Australian magpie, magpie-lark, white-throated needletail and pheasant coucal. Latham has been called the "grandfather" of Australian ornithology. He was also the first to describe the hyacinth macaw from South America. Biography John Latham was born on 27 June 1740 at Eltham in northwest Kent. He was the eldest son of John Latham (died 1788), a surgeon, and his mother, who was a descendant of the Sothebys, in Yorkshire. He was educated at Merc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Larus Pacificus
The Pacific gull (''Larus pacificus'') is a gull, native to the coasts of Australia. It is moderately common between Carnarvon in the west, and Sydney in the east, although it has become scarce in some parts of the south-east, as a result of competition from the kelp gull, which has "self-introduced" since the 1940s. Much larger than the ubiquitous silver gull, and much less common, Pacific gulls are usually seen alone or in pairs, loafing around the shoreline, steadily patrolling high above the edge of the water, or sometimes flying high on the breeze to drop a shellfish or sea urchin onto rocks. Diet The gulls' diet consists of a number various fish species and invertebrates. They frequently consume crabs, most often the species '' Ovalipes australiensis'' and '' Paragrapsus gaimardii.'' They also commonly eat ''Platycephalus bassensis'' (sand flatheads) and cephalopods, both of which are sourced from their regular consumption of waste from fish which have been cleaned on wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Gull
The Pacific gull (''Larus pacificus'') is a gull, native to the coasts of Australia. It is moderately common between Carnarvon, Western Australia, Carnarvon in the west, and Sydney in the east, although it has become scarce in some parts of the south-east, as a result of competition from the kelp gull, which has "self-introduced" since the 1940s. Much larger than the ubiquitous silver gull, and much less common, Pacific gulls are usually seen alone or in pairs, loafing around the shoreline, steadily patrolling high above the edge of the water, or sometimes flying high on the breeze to drop a shellfish or sea urchin onto rocks. Diet The gulls' diet consists of a number various fish species and invertebrates. They frequently consume crabs, most often the species ''Ovalipes australiensis'' and ''Paragrapsus gaimardii.'' They also commonly eat ''Platycephalus bassensis'' (sand flatheads) and cephalopods, both of which are sourced from their regular consumption of waste from fish wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Black-backed Gull
The great black-backed gull (''Larus marinus'') is the largest member of the gull family. It is a very aggressive hunter, pirate, and scavenger which breeds on the coasts and islands of the North Atlantic in northern Europe and northeastern North America. Southern populations are generally sedentary, while those breeding in the far north (northern Norway, northwest Russia) move farther south in winter. A few also move inland to large lakes and reservoirs. The adult has a white head, neck and underparts, dark blackish-grey wings and back, pink legs and the bill yellow with a red spot. Taxonomy The great black-backed gull was one of the many species originally described by Carl Linnaeus in his 1758 10th edition of Systema Naturae, 10th edition of ''Systema Naturae'', and it still bears its original name of ''Larus marinus''. The scientific name is from Latin. ''Larus'' appears to have referred to a gull or other large seabird. The specific name ''marinus'' means "marine", or when t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
