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Sandgrouse
Sandgrouse is the common name for Pteroclidae (), a family (biology), family of sixteen species of bird, members of the order Pterocliformes (). They are traditionally placed in two Genus, genera. The two central Asian species are classified as ''Syrrhaptes'' and the other fourteen species, from Africa and Asia, are placed in the genus ''Pterocles''. They are ground-dwelling birds restricted to treeless, open country, such as plains, savannahs, and semi-deserts. They are distributed across northern, southern, and eastern Africa, Madagascar, the Middle East, and India through central Asia. The ranges of the black-bellied sandgrouse and the pin-tailed sandgrouse even extend into the Iberian Peninsula and France, and Pallas's sandgrouse occasionally Irruptive growth, breaks out in large numbers from its normal range in Asia. Description Sandgrouse have small, pigeon-like heads and necks and sturdy compact bodies. They range in size from in length and from in weight. Their feathers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nyctiperdix
''Pterocles '' is a genus of near passerine birds in the sandgrouse family. It includes all the species in the family except for two central Asian species in ''Syrrhaptes''. These sandgrouse have small, pigeon-like heads and necks, but sturdy compact bodies. They have long pointed wings and sometimes tails. Their legs are feathered down to the toes, but unlike species of the genus ''Syrrhaptes'' the toes are not feathered. ''Pterocles'' species have a fast direct flight, and flocks fly to watering holes at dawn and dusk. Two to three eggs are laid directly on the ground. They are buff or greenish with cryptic markings. All species are resident. Taxonomy The genus ''Pterocles'' was introduced in 1815 by the Dutch zoologist Coenraad Jacob Temminck. The type species was subsequently designated by the English zoologist George Robert Gray as the pin-tailed sandgrouse. The genus name combines the Ancient Greek ''pteron'' meaning "wing" with ''-klēs'' meaning "notable" or "splendid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pterocles
''Pterocles '' is a genus of near passerine birds in the sandgrouse family. It includes all the species in the family except for two central Asian species in '' Syrrhaptes''. These sandgrouse have small, pigeon-like heads and necks, but sturdy compact bodies. They have long pointed wings and sometimes tails. Their legs are feathered down to the toes, but unlike species of the genus ''Syrrhaptes'' the toes are not feathered. ''Pterocles'' species have a fast direct flight, and flocks fly to watering holes at dawn and dusk. Two to three eggs are laid directly on the ground. They are buff or greenish with cryptic markings. All species are resident. Taxonomy The genus ''Pterocles'' was introduced in 1815 by the Dutch zoologist Coenraad Jacob Temminck. The type species was subsequently designated by the English zoologist George Robert Gray as the pin-tailed sandgrouse. The genus name combines the Ancient Greek ''pteron'' meaning "wing" with ''-klēs'' meaning "notable" or "splend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black-bellied Sandgrouse
The black-bellied sandgrouse (''Pterocles orientalis'') is a medium large bird in the sandgrouse family. The nominate race breeds in Iberian Peninsula , Northwest Africa, the Canary Islands, Turkey, Iran, Cyprus and Israel. The eastern form ''P. o. arenarius'' (Pallas, 1775) is found in Kazakhstan, western China and northern Pakistan. It is a partial migrant, with central Asian birds moving to the Pakistan and northern India in winter. Taxonomy The black-bellied sandgrouse was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae''. He placed it with all the other grouse-like birds in the genus '' Tetrao'' and coined the binomial name ''Tetrao orientalis''. The black-bellied sandgrouse is now placed with 13 other species in the genus '' Pterocles'' that was introduced in 1815 by the Dutch zoologist Coenraad Jacob Temminck. The genus name combines the Ancient Greek ''pteron'' meaning "wing" with ''-klēs'' meaning "n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double-banded Sandgrouse
The double-banded sandgrouse (''Pterocles bicinctus'') is a species of predominantly terrestrial, or ground-dwelling (though not flightless), bird in the family Pteroclidae. It is found in arid parts of southern Africa. Subspecies There are three subspecies: ''P. b. ansorgei'' is found in the southwest of Angola; ''P. b. bicinctus'' is found in Namibia, Botswana and the northwest of Cape Province, South Africa; ''P. b. multicolor'' is found in Zambia, Malawi, Mozambique and Transvaal. These sandgrouse have been observed in and around the Okavango Delta in Botswana. Description A moderately-sized, quail-like bird with a plump body, the double-banded sandgrouse has a small, almost pigeon-like head with a long pair of wings and tail. The general colour of the plumage is light brown, with darker mottling and rows of whitish specks; the male is distinguished by having a conspicuous black-and-white band on his forehead, with a chestnut-coloured throat that is delineated by anot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Syrrhaptes
''Syrrhaptes'' is a genus of birds in the sandgrouse family. The genus name is from Ancient Greek ''surrhaptos'', "sewn together"; the feathered toes of birds in this genus are fused together. There are two central Asia Asia ( , ) is the largest continent in the world by both land area and population. It covers an area of more than 44 million square kilometres, about 30% of Earth's total land area and 8% of Earth's total surface area. The continent, which ...n species. These are large birds breeding in open steppes or plateau. They nest in a ground scrape into which three eggs are laid. Both species have mainly buff upperparts, an orange face and feathered legs and toes. They are smaller-headed than other sandgrouse, but have sturdy compact bodies. The small feet lack a hind toe, and the three front toes are fused together. The upper surface is feathered, and the underneath has a fleshy pad. The appearance of the foot is more like a paw than an avian foot. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird
Birds are a group of warm-blooded vertebrates constituting the class (biology), class Aves (), characterised by feathers, toothless beaked jaws, the Oviparity, laying of Eggshell, hard-shelled eggs, a high Metabolism, metabolic rate, a four-chambered heart, and a strong yet lightweight Bird skeleton, skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 Order (biology), orders. More than half are passerine or "perching" birds. Birds have Bird wing, wings 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 Flightless bird, loss of flight in some birds, including ratites, penguins, and diverse endemism, endemic island species. The digestive and respiratory systems of birds are also uniquely a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China
China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after India, representing 17.4% of the world population. China spans the equivalent of five time zones and Borders of China, borders fourteen countries by land across an area of nearly , making it the list of countries and dependencies by area, third-largest country by land area. The country is divided into 33 Province-level divisions of China, province-level divisions: 22 provinces of China, provinces, 5 autonomous regions of China, autonomous regions, 4 direct-administered municipalities of China, municipalities, and 2 semi-autonomous special administrative regions. Beijing is the country's capital, while Shanghai is List of cities in China by population, its most populous city by urban area and largest financial center. Considered one of six ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is a seasonal movement of birds between breeding and wintering grounds that occurs twice a year. It is typically from north to south or from south to north. Animal migration, Migration is inherently risky, due to predation and mortality. The Arctic tern holds the long-distance migration record for birds, travelling between Arctic breeding grounds and the Antarctic each year. Some species of Procellariiformes, tubenoses, such as albatrosses, circle the Earth, flying over the southern oceans, while others such as Manx shearwaters migrate between their northern breeding grounds and the southern ocean. Shorter migrations are common, while longer ones are not. The shorter migrations include altitudinal migrations on mountains, including the Andes and Himalayas. The timing of migration seems to be controlled primarily by changes in day length. Migrating birds navigate using celestial cues from the Sun and stars, the Earth's magnetic field, and mental maps. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yorkshire
Yorkshire ( ) is an area of Northern England which was History of Yorkshire, historically a county. Despite no longer being used for administration, Yorkshire retains a strong regional identity. The county was named after its county town, the city of York. The south-west of Yorkshire is densely populated, and includes the cities of Leeds, Sheffield, Bradford, Doncaster and Wakefield. The north and east of the county are more sparsely populated, however the north-east includes the southern part of the Teesside conurbation, and the port city of Kingston upon Hull is located in the south-east. York is located near the centre of the county. Yorkshire has a Yorkshire Coast, coastline to the North Sea to the east. The North York Moors occupy the north-east of the county, and the centre contains the Vale of Mowbray in the north and the Vale of York in the south. The west contains part of the Pennines, which form the Yorkshire Dales in the north-west. The county was historically borde ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
