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Allen's Gallinule
Allen's gallinule (''Porphyrio alleni''), formerly known as the lesser gallinule, is a small waterbird of the family Rallidae. Its former binomial name is ''Porphyrula alleni''. ''Porphyrio'' is the Latin for "swamphen", and ''alleni'', like the English name, commemorates British naval officer Rear-Admiral William Allen (1792–1864). Its breeding habitat is marshes and lakes in Sub-Saharan Africa. They build a floating nest in marshes and swamps, laying 2–5 eggs. This species is partially migratory, undertaking seasonal movements. Remarkably, this apparently weakly flying bird is not only the only species with a purely sub-Saharan African range to have reached Great Britain, but has done so twice. It has also occurred as a vagrant in several other European countries. They are similar in size to the only slightly larger water rail. The Allen's gallinule has a short red bill, greenish back and purple upperparts. They have red legs with long toes, and a short tail which is whit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Richard Heywood Thomson
Thomas Richard Heywood Thomson (1813–1876) was an English explorer and naturalist. He took part in the Niger expedition of 1841. He originally described the Allen's gallinule. Works *Captain William Allen William Allen may refer to: Politicians United States *William Allen (congressman) (1827–1881), United States Representative from Ohio *William Allen (governor) (1803–1879), U.S. Representative, Senator, and 31st Governor of Ohio *William ... & T. R. H. Thomson 1848: ''A narrative of the expedition sent by Her Majesty's government to the river Niger, in 1841, under the command of Capt. H. D. Trotter, R.N.''. 2 vols. – Richard Bentley, Lontoo. *T. R. H. Thomson 1854: Observations on the Reported Incompetency of the "Gins" or Aboriginal Females of New Holland, to Procreate with a Native Male after Having Borne Half-Caste Children to a European or White. ''Journal of the Ethnological Society of London'' (1848–1856), Vol. 3, 1854 (1854), ss. 243–246 References''A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allen's Gallinule, Porphyrio Alleni, At Chobe National Park, Botswana
Allen's, earlier A. W. Allen Limited, is an Australian brand of confectionery products produced by Nestlé. Allen's is the top brand of sugar confectionery in Australia. It is best known for Minties, a soft chewable mint-flavored confectionery, and their varieties of 'Party Mix' lollies. History Allen's was founded by Alfred Weaver Allen (1870–1925), a Melbourne confectioner. Originally employed by MacRobertson's, he commenced confectionery production in 1891 at his Fitzroy confectionery shop. By 1909, Allen's was the third largest confectionery business in Melbourne, after those of MacRobertson and Abel Hoadley. It launched as a public company in 1922. It moved from an adjacent site to a vast factory built to the design of prominent Melbourne architect Joseph Plottel in South Melbourne on the banks of the Yarra River (which had formerly housed Holden's first Australian plant and Kraft Walker Foods), in the 1950s. Its animated neon sign was a local landmark up to its demise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Comoros
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] |
Porphyrio
''Porphyrio'' is the swamphen or swamp hen bird genus in the Rallidae, rail family. It includes some smaller species which are usually called "purple gallinules", and which are sometimes separated as genus ''Porphyrula'' or united with the gallinules proper (or "moorhens") in ''Gallinula''. The ''Porphyrio'' gallinules are distributed in the warmer regions of the world. The group probably originated in Africa in the Middle Miocene, before spreading across the world in waves from the Late Miocene to Pleistocene. The genus ''Porphyrio'' was introduced by the French zoologist Mathurin Jacques Brisson in 1760 with the western swamphen (''Porphyrio porphyrio'') as the type species. The genus name ''Porphyrio'' is the Latin name for "swamphen", meaning "purple". Species The genus contains ten extant species and two that have become extinct in historical times: Extant species * Purple swamphen complex ** Western swamphen, ''Porphyrio porphyrio'' ** African swamphen, ''Porphyrio madag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rallidae
The rails, or Rallidae, are a large cosmopolitan family of small- to medium-sized, ground-living birds. The family exhibits considerable diversity and includes the crakes, coots, and gallinules. Many species are associated with wetlands, although the family is found in every terrestrial habitat except dry deserts, polar regions, and alpine areas above the snow line. Members of the Rallidae occur on every continent except Antarctica. Numerous island species are known. The most common rail habitats are marshland and dense forest. They are especially fond of dense vegetation.Horsfall & Robinson (2003): pp. 206–207 Name "Rail" is the anglicized respelling of the French ''râle'', from Old French ''rasle''. It is named from its harsh cry, in Vulgar Latin *''rascula'', from Latin ''rādere'' ("to scrape"). Morphology The rails are a family of small to medium-sized, ground-living birds. They vary in length from and in weight from . Some species have long necks and in many ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frontal Shield
A frontal shield, also known as a facial shield or frontal plate, is a feature of the anatomy of several bird species. Located just above the upper mandible, and protruding along the forehead, it is composed of two main parts: a hard, proteinaceous callus and a soft, fleshy corium. It is thought to play roles in protection, mate identification, sexual selection, and territorial defense. Composition The callus is a hard, keratinous section of the frontal plate located highest on the forehead. It is generally more pigmented than the surrounding corium. Underneath the callus is a Malpighian layer of tissue that connects the structure to the maxilla. This layer is supplied with blood via vessel-containing dermal papillae. It has been observed to resemble the texture of calloused human skin. The corium is a thick, dense mass of connective tissue fibers that makes up the largest portion of the frontal plate. It contains layers of cells that aide in enlarging or flattening the structur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Rail
The water rail (''Rallus aquaticus'') is a bird of the rail family which breeds in well-vegetated wetlands across Europe, Asia and North Africa. Northern and eastern populations are migratory, but this species is a permanent resident in the warmer parts of its breeding range. The adult is long, and, like other rails, has a body that is flattened laterally, allowing it easier passage through the reed beds it inhabits. It has mainly brown upperparts and blue-grey underparts, black barring on the flanks, long toes, a short tail and a long reddish bill. Immature birds are generally similar in appearance to the adults, but the blue-grey in the plumage is replaced by buff. The downy chicks are black, as with all rails. The former subspecies ''R. indicus'', has distinctive markings and a call that is very different from the pig-like squeal of the western races, and is now usually split as a separate species, the brown-cheeked rail. The water rail breeds in reed beds and other mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia and it is located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. Comprising the westernmost peninsulas of Eurasia, it shares the continental landmass of Afro-Eurasia with both Africa and Asia. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south and Asia to the east. Europe is commonly considered to be Boundaries between the continents of Earth#Asia and Europe, separated from Asia by the drainage divide, watershed of the Ural Mountains, the Ural (river), Ural River, the Caspian Sea, the Greater Caucasus, the Black Sea and the waterways of the Turkish Straits. "Europe" (pp. 68–69); "Asia" (pp. 90–91): "A commonly accepted division between Asia and E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Annals And Magazine Of Natural History, Including Zoology, Botany, And Geology
The ''Journal of Natural History'' is a scientific journal published by Taylor & Francis focusing on entomology and zoology. The journal was established in 1841 under the name ''Annals and Magazine of Natural History'' (''Ann. Mag. Nat. Hist.'') and obtained its current title in 1967. The journal was formed by the merger of the ''Magazine of Natural History'' (1828–1840) and the ''Annals of Natural History'' (1838–1840; previously the ''Magazine of Zoology and Botany'', 1836–1838) and '' Loudon and Charlesworth's Magazine of Natural History''. In September 1855, the ''Annals and Magazine of Natural History'' published "On the Law which has Regulated the Introduction of New Species", a paper which Alfred Russel Wallace had written while working in the state of Sarawak on the island of Borneo in February of that year. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Britain
Great Britain is an island in the North Atlantic Ocean off the northwest coast of continental Europe. With an area of , it is the largest of the British Isles, the largest European island and the ninth-largest island in the world. It is dominated by a maritime climate with narrow temperature differences between seasons. The 60% smaller island of Ireland is to the west—these islands, along with over 1,000 smaller surrounding islands and named substantial rocks, form the British Isles archipelago. Connected to mainland Europe until 9,000 years ago by a landbridge now known as Doggerland, Great Britain has been inhabited by modern humans for around 30,000 years. In 2011, it had a population of about , making it the world's third-most-populous island after Java in Indonesia and Honshu in Japan. The term "Great Britain" is often used to refer to England, Scotland and Wales, including their component adjoining islands. Great Britain and Northern Ireland now constitute the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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