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Montane Double-collared Sunbird
Ludwig's double-collared sunbird (''Cinnyris ludovicensis'') or the montane double-collared sunbird, is a small passerine bird which breeds in forested mountains above in western Angola as well as the Nyika Plateau of northern Malawi and northeastern Zambia. This bird is sometimes considered to be con-specific with the greater double-collared sunbird (''Cinnyris afer''). It is sometimes placed in the genus ''Nectarinia''. Description The sunbird is a medium-size species. The adult male has a glossy, metallic green head, throat upper breast and back with a golden sheen. The upper-tail coverts are metallic blue and the tail black glossed with blue. The throat and upper breast are metallic green, the lower breast scarlet and the rest of the underparts are dark olive. When displaying, yellow feather tufts are visible on the shoulders. As with other sunbirds the bill is long and decurved. The eye is dark brown while the beak, legs and feet are black. The adult female has dark greyish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
José Vicente Barbosa Du Bocage
José Vicente Barbosa du Bocage (2 May 1823 – 3 November 1907) was a Portuguese zoologist and politician. He was the curator of Zoology at the Museu Nacional de Lisboa in Lisbon. He published numerous works on mammals, birds, and fishes. In the 1880s he became the Minister of the Navy and later the Minister for Foreign Affairs for Portugal. The zoology collection at the Lisbon Museum is called the Bocage Museum in his honor. Du Bocage was born in Funchal, Madeira. He studied at the University of Coimbra from 1839 to 1846. He became lecturer of the chair of Zoology at the Polytechnic School, Lisbon (later the Science Faculty of the University of Lisbon) in 1851, where he taught for more than 30 years. In 1858, he became also the scientific director and curator of Zoology of the Natural History Museum of the Polytechnic School. which was established as a support for the chair. His work at the Museum consisted in acquiring, describing and coordinating collections, many of whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Passerine
A passerine () is any bird of the order Passeriformes (; from Latin 'sparrow' and '-shaped'), which includes more than half of all bird species. Sometimes known as perching birds, passerines are distinguished from other orders of birds by the arrangement of their toes (three pointing forward and one back), which facilitates perching. With more than 140 families and some 6,500 identified species, Passeriformes is the largest clade of birds and among the most diverse clades of terrestrial vertebrates, representing 60% of birds.Ericson, P.G.P. et al. (2003Evolution, biogeography, and patterns of diversification in passerine birds ''J. Avian Biol'', 34:3–15.Selvatti, A.P. et al. (2015"A Paleogene origin for crown passerines and the diversification of the Oscines in the New World" ''Molecular Phylogenetics and Evolution'', 88:1–15. Passerines are divided into three clades: Acanthisitti (New Zealand wrens), Tyranni (suboscines), and Passeri (oscines or songbirds). The passeri ... [...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] |
Angolan Montane Forest–grassland Mosaic
The Angolan montane forest-grassland mosaic ecoregion is located on the east-facing inland side of the belt of mountains that stands parallel to the coast of Angola, 50–100 km inland. Geography These inland slopes are mostly covered with grassland and savanna. The woodland once covered a much larger area but today only patches survive, mainly in deep ravines and on the higher peaks in Huambo and Cuanza Sul provinces, such as Mount Moco (2,620 m), Mount Mepo (2,582 m), Mount Lubangue (2,554 m), Mount Namba (2582 m), and on the Serra da Chela in Huíla Province. The towns of Huambo and Lubango are located at the edge of the ecoregion. Climate The area has a wet summer and some mist and rainfall year-round so water is fairly abundant though in the dry season obtainable in some places only by digging in the sandy beds of the rivers. Flora Open montane grassland is the predominant plant community above 1600 meters elevation. In the dry season fires are common and the dry gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angola
, national_anthem = " Angola Avante"() , image_map = , map_caption = , capital = Luanda , religion = , religion_year = 2020 , religion_ref = , coordinates = , largest_city = capital , official_languages = Portuguese , languages2_type = National languages , languages2 = , ethnic_groups = , ethnic_groups_ref = , ethnic_groups_year = 2000 , demonym = , government_type = Unitary dominant-party presidential republic , leader_title1 = President , leader_name1 = João Lourenço , leader_title2 = Vice President , leader_name2 = Esperança da CostaInvestidura do Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyika Plateau
The Nyika Plateau lies in northern Malawi, with a small portion in north eastern Zambia. Most of it lies at elevations of between , the highest point being at Nganda Peak. It is roughly a diamond in shape, with a long north–south axis of about , and an east–west axis of about . It towers above Lake Malawi (elevation ), and the towns of Livingstonia and Chilumba. Its well-defined north-west escarpment rises about above the north-eastern extremity of the Luangwa Valley, and its similarly prominent south-east escarpment rises about above the South Rukuru River valley. It is very different in scenery from other parts of Malawi, consisting of rolling hills with little streams in broad valleys, and rough grassland with clumps of pine trees. Wildlife and human settlement It is known for its wildlife; mammals in the park include Crawshay's zebras, bushbucks, reedbucks, roan antelopes, elands, klipspringers, duikers, and warthogs. Also present are carnivores including jackals, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Double-collared Sunbird
The greater double-collared sunbird (''Cinnyris afer'') (formerly placed in the genus ''Nectarinia''), is a small bird in the sunbird family. Distribution and habitat The sunbird breeds in southern South Africa. It is mainly resident, but partly migratory in the northeast of its range. It is common in gardens, fynbos, forest edges and coastal scrub. Description This sunbird is 14 cm long and exhibits a clear sexual dimorphism. The adult male has a glossy, metallic green head, throat upper breast and back. It has a broad brilliant red band across the chest, separated from the green breast by a narrow metallic blue band. The rest of the underparts are pale grey. When displaying, yellow feather tufts can be seen on the shoulders. The plumage on the female is pale grey, darker in the wings. As with other sunbirds the bill is long and decurved. The bill, legs and feet are black. The eye is dark brown. The male can be distinguished from the similar lesser double-collared sunb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hummingbird
Hummingbirds are birds native to the Americas and comprise the biological family Trochilidae. With about 361 species and 113 genera, they occur from Alaska to Tierra del Fuego, but the vast majority of the species are found in the tropics around the equator. They are small birds, with most species measuring in length. The smallest extant hummingbird species is the bee hummingbird, which weighs less than . The largest hummingbird species is the giant hummingbird, weighing . They are specialized for feeding on flower nectar, but all species also consume flying insects or spiders. Hummingbirds split from their sister group, the swifts and treeswifts, around 42 million years ago. The common ancestor of extant hummingbirds is estimated to have lived 22 million years ago in South America. They are known as hummingbirds because of the humming sound created by their beating wings, which flap at high frequencies audible to humans. They hover in mid-air at rapid wing-flapping rate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinnyris
''Cinnyris'' is a genus of sunbirds. Its members are sometimes included in ''Nectarinia''. They are generally known as double-collared sunbirds because the fringe of their bib usually includes a band of contrastingly coloured feathers. The sunbirds are a group of very small Old World passerine birds which feed largely on nectar, although they will also take insects, especially when feeding young. Flight is fast and direct on their short wings. Most species can take nectar by hovering like a hummingbird, but usually perch to feed. Taxonomy The genus was introduced by the French naturalist Georges Cuvier in 1816. The type species was designated as "''Certhia splendida'' Shaw" by George Robert Gray in 1855. This taxon is a junior synonym of ''Certhia coccinigaster'' described by John Latham in 1801. This is now the splendid sunbird. The name ''Cinnyris'' is from the Ancient Greek κιννυρις (''kinnyris''), an unknown small bird mentioned by Hesychius of Alexandria Hesyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Birds Of Angola
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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