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Mountain Oriole
The mountain oriole (''Oriolus percivali''), is a species of bird in the family Oriolidae. It is found in central and eastern Africa from eastern Democratic Republic of Congo to central Kenya and western Tanzania. Its natural habitats are subtropical or tropical moist montane forests. Taxonomy and systematics The mountain oriole has been considered by some authorities to be a subspecies of the black-headed oriole or the black-winged oriole The black-winged oriole (''Oriolus nigripennis'') is a species of bird in the family Oriolidae. It is found in Africa from Sierra Leone and Liberia to southern South Sudan, western Uganda, central Democratic Republic of Congo and north-western .... Alternate names for the mountain oriole include the black-tailed oriole, montane oriole and Percival's oriole. References mountain oriole Birds of East Africa mountain oriole Taxonomy articles created by Polbot {{Oriolidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Robert Ogilvie-Grant
William Robert Ogilvie-Grant (25 March 1863 – 26 July 1924) was a Scottish ornithologist. Early life and education Grant born on 25 March 1863 as second son of Capt. Hon. George Henry Essex Ogilvie-Grant, of Easter Elchies, Craigellachie, Scotland, of the 42nd Highlanders, sixth son of Francis Ogilvy-Grant, 6th Earl of Seafield, and daughter of Sir William Gordon-Cumming, 2nd Baronet. Ogilvie-Grant was educated at Fettes College, Edinburgh, where he studied zoology and anatomy. He also studied at Cargilfield Preparatory School. Career In 1882 he became an Assistant at the Natural History Museum, London, Natural History Museum. He studied ichthyology under Albert C. L. G. Günther, and in 1885 he was put in temporary charge of the Ornithological Section under Richard Bowdler Sharpe's visit to India. He remained in that department, eventually becoming Curator of Birds from 1909 to 1918. He also succeeded Bowdler Sharpe as editor of the ''Bulletin of the British Ornithologists ... [...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] |
Habitat
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche. Thus "habitat" is a species-specific term, fundamentally different from concepts such as environment or vegetation assemblages, for which the term "habitat-type" is more appropriate. The physical factors may include (for example): soil, moisture, range of temperature, and light intensity. Biotic factors will include the availability of food and the presence or absence of predators. Every species has particular habitat requirements, with habitat generalist species able to thrive in a wide array of environmental conditions while habitat specialist species requiring a very limited set of factors to survive. The habitat of a species is not necessarily found in a geographical area, it can be the interior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montane Forest
Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures fall as elevation increases, causing the ecosystem to stratify. This stratification is a crucial factor in shaping plant community, biodiversity, metabolic processes and ecosystem dynamics for montane ecosystems. Dense montane forests are common at moderate elevations, due to moderate temperatures and high rainfall. At higher elevations, the climate is harsher, with lower temperatures and higher winds, preventing the growth of trees and causing the plant community to transition to montane grasslands, shrublands or alpine tundra. Due to the unique climate conditions of montane ecosystems, they contain increased numbers of endemic species. Montane ecosystems also exhibit variation in ecosystem services, which include carbon storage and water supply. Life zones As elevation increases, the climate becomes cooler, due to a decrease in a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-headed Oriole
The black-headed oriole (''Oriolus larvatus'') is a species of bird in the family Oriolidae. It is found in Africa and has a very striking appearance with a bright yellow body, contrasting black head and flesh-coloured beak. Taxonomy and systematics Some authorities have considered the mountain oriole to be a subspecies of the black-headed oriole. Alternate names for the black-headed oriole include the African black-headed oriole, Eastern black-headed oriole and Eastern oriole. Subspecies Five subspecies are recognized: * ''O. l. rolleti'' - Salvadori, 1864: Originally described as a separate species. Found from southern Sudan and southern Ethiopia to eastern Democratic Republic of Congo and central Kenya * ''O. l. reichenowi'' - Zedlitz, 1916: Found from Somalia to eastern Tanzania * Kenya black-headed oriole (''O. l. angolensis'') - Neumann, 1905: Found from Angola and Namibia to western Tanzania and northern Mozambique * ''O. l. tibicen'' - Lawson, 1962: Found from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-winged Oriole
The black-winged oriole (''Oriolus nigripennis'') is a species of bird in the family Oriolidae. It is found in Africa from Sierra Leone and Liberia to southern South Sudan, western Uganda, central Democratic Republic of Congo and north-western Angola. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests. Some authorities have considered the mountain oriole to be a subspecies of the black-winged oriole. References black-winged oriole Birds of the Gulf of Guinea Birds of the African tropical rainforest black-winged oriole Taxonomy articles created by Polbot {{Oriolidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oriolus
Orioles are colourful Old World passerine birds in the genus ''Oriolus'', the type genus of the corvoidean family Oriolidae. They are not closely related to the New World orioles, which are icterids (family Icteridae) that belong to the superfamily Passeroidea. Taxonomy and systematics The genus ''Oriolus'' was erected by Linnaeus in 1766 in the 12th edition of his ''Systema Naturae''. The type species is the golden oriole (''Oriolus oriolus''). In 1760, French ornithologist Mathurin Jacques Brisson in his ''Ornithologie'' used ''Oriolus'' as a subdivision of the genus ''Turdus'', but the International Commission on Zoological Nomenclature ruled in 1955 that "''Oriolus'' Brisson, 1760" should be suppressed. Linnaeus added more than a dozen additional genera when he updated his 10th edition, but he generally based new genera on those that had been introduced by Brisson in his ''Ornithologie''. ''Oriolus'' is now the only genus for which Linnaeus's 12th edition is cited as the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of East Africa
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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1903
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. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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