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Turnix Nanus
The black-rumped buttonquail (''Turnix nanus'') is a small species of bird in the buttonquail family. Description This species has a brown back, rufous chest, and pale belly, brown irises and a black rump. As usual for buttonquails but not for most birds, the female is larger and brighter than the male. The birds are shy and difficult to flush. Taxonomy and systematics The Black-rumped buttonquail, scientific name Turnix nanus, belongs to the family Turnicidae, which includes buttonquails or hemipodes. The family is part of the order Charadriiformes, which also contains shorebirds, gulls, and auks. The Turnicidae family consists of 16 species of buttonquails found in Asia, Africa, and Australia. The Black-rumped buttonquail was first described by the British naturalist Thomas Horsfield in 1821. The species was initially classified as Tetrao nanus but later placed in the genus Turnix. The Black-rumped buttonquail is one of the smallest buttonquail species, measuring only about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Jakob Sundevall
Carl Jakob Sundevall (22 October 1801, Högestad – 2 February 1875) was a Swedish zoologist. Sundevall studied at Lund University, where he became a Ph.D. in 1823. After traveling to East Asia, he studied medicine, graduating as Doctor of Medicine in 1830. He was employed at the Swedish Museum of Natural History, Stockholm from 1833, and was professor and keeper of the vertebrate section from 1839 to 1871. He wrote ''Svenska Foglarna'' (1856–87) which described 238 species of birds observed in Sweden. He classified a number of birds collected in southern Africa by Johan August Wahlberg. In 1835, he developed a phylogeny for the birds based on the muscles of the hip and leg that contributed to later work by Thomas Huxley. He then went on to examine the arrangement of the deep plantar tendons in the bird's foot. This latter information is still used by avian taxonomists. Sundevall was also an entomologist and arachnologist, for which (for the latter field) in 1833 he publish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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