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Black-capped Social Weaver
The black-capped social weaver (''Pseudonigrita cabanisi'') is a sparrow-like species of bird that has been assigned to the weaverbird family. It was originally described by Fisher and Reichenow, and later re-classified by the latter to the genus ''Pseudonigrita''. Adults have a large black cap, ivory-colored bill, red eyes, brown back and wings, blackish-brown tail, white throat and underparts with a black midline, and dark horn-colored legs. It breeds in colonies and roofed nests with an entrance at the bottom in thorny trees such as acacias are constructed by the male from grass stems. It is found in parts of Ethiopia, Kenya, Somalia, and Tanzania. It is sometimes kept and bred in captivity. Taxonomy and systematics In 1884, the black-capped social weaver was first described by German East-Africa explorer Gustav Fischer and German ornithologist Anton Reichenow as ''Nigrita cabanisi'', based on a specimen collected in 1883 by Fischer in the Pare Mountains. In 1903, Reichenow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Gustav Adolf Fischer
Gustav Adolf Fischer (3 March 1848 – 11 November 1886, Berlin) was a German explorer of East Africa. Biography Gustav Adolf Fischer was born in Barmen (now part of the city of Wuppertal) in Germany on 3 March 1848. He attended high school, first in his home town and then in Cologne. On leaving school in 1869 he studied medicine and natural sciences in Bonn, Berlin and then Würzburg where he obtained a doctorate. In 1874 he joined the 1st Garde Dragoon Regiment as a doctor and was assigned to the East Frisian Infantry Regiment garrisoned in Emden. In 1876 he accompanied Clemens Denhardt's expedition to Zanzibar, where he settled as a physician. In the following year he explored Wituland and the southern Oromo country. In 1878 he continued his journey in Kenya along the Tana River to Masabubu. With the support of the Geographic Society in Hamburg he visited the Maasai country in 1882 and penetrated from the mouth of the Pangani River to Lake Naivasha. The Maasai prevented him ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Philetairus Socius
The sociable weaver (''Philetairus socius'') is a species of bird in the weaver family, endemic to Southern Africa. It is the only species in its genus ''Philetairus''. It is found in South Africa, Namibia, and Botswana, but its range is centered within the Northern Cape Province of South Africa. The species builds large, compound, community nests, a rarity among birds. These nests are perhaps the most spectacular structure built by any bird. Taxonomy and systematics The sociable weaver was first described by ornithologist John Latham in 1790. Alternative names include the common social weaver, common social-weaver, and social weaver. Formerly, four subspecies were recognised, but the species is now considered monotypic. The sociable weaver is the only extant species in the genus ''Philetairus''. Phylogeny Based on a 2017 DNA-analysis, ''P. socius'' belongs to the group of sparrow weavers (subfamily Plocepasserinae) and is most related to the genus ''Pseudonigrita''. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Acacia
''Acacia'', commonly known as wattles or acacias, is a genus of about of shrubs and trees in the subfamily Mimosoideae of the pea family Fabaceae. Initially, it comprised a group of plant species native to Africa, South America, and Australasia, but is now reserved for species mainly from Australia, with others from New Guinea, Southeast Asia, and the Indian Ocean. The genus name is Neo-Latin, borrowed from Koine Greek (), a term used in antiquity to describe a preparation extracted from '' Vachellia nilotica'', the original type species. Several species of ''Acacia'' have been introduced to various parts of the world, and two million hectares of commercial plantations have been established. Description Plants in the genus ''Acacia'' are shrubs or trees with bipinnate leaves, the mature leaves sometimes reduced to phyllodes or rarely absent. There are 2 small stipules at the base of the leaf, but sometimes fall off as the leaf matures. The flowers are borne in spik ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bird Colony
A bird colony is a large congregation of individuals of one or more species of bird that nest or roost in proximity at a particular location. Many kinds of birds are known to congregate in groups of varying size; a congregation of nesting birds is called a breeding colony. Colonial nesting birds include seabirds such as auks and albatrosses; wetland species such as herons; and a few passerines such as weaverbirds, certain blackbirds, and some swallows. A group of birds congregating for rest is called a communal roost. Evidence of colonial nesting has been found in non- neornithine birds (Enantiornithes), in sediments from the Late Cretaceous (Maastrichtian) of Romania. Variations on colonial nesting in birds Approximately 13% of all bird species nest colonially. Nesting colonies are very common among seabirds on cliffs and islands. Nearly 95% of seabirds are colonial, leading to the usage, seabird colony, sometimes called a rookery. Many species of terns nest in colonies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Monogamy In Animals
Some animal species have a monogamous mating system, in which pairs bond to raise offspring. This is associated, usually implicitly, with sexual monogamy. Monogamous mating Monogamy is defined as a pair bond between two adult animals of the same species. This pair may cohabitate in an area or territory for some duration of time, and in some cases may copulate and reproduce with only each other. Monogamy may either be short-term, lasting one to a few seasons or long-term, lasting many seasons and in extreme cases, life-long. Monogamy can be partitioned into two categories, social monogamy and genetic monogamy which may occur together in some combination, or completely independently of one another.Ophir, Alexander G., Phelps, Steven M., Sorin, Anna Bess & O. Wolff, J. (2008)Social but not genetic monogamy is associated with greater breeding success in prairie voles/ref> As an example, in the cichlid species '' Variabilichromis moorii'', a monogamous pair will care for eggs and y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Tripoint
A triple border, tripoint, trijunction, triple point, or tri-border area is a geography, geographical point at which the boundaries of three countries or Administrative division, subnational entities meet. There are 175 international tripoints as of 2020. Nearly half are situated in rivers, lakes or seas. On dry land, the exact tripoints may be indicated by markers or pillars, and occasionally by larger monuments. Usually, the more neighbours a country has, the more international tripoints that country has. China with 16 international tripoints and Russia with 11 to 14 lead the list of states by number of international tripoints. Other countries, like Brazil, India, and Algeria, have several international tripoints. Argentina has four international tripoints. South Africa, Pakistan and Nigeria have three international tripoints, Guatemala has two: one with Mexico and Belize, and one with Honduras and El Salvador; while Bangladesh and Mexico have one. Within Europe, landlocked Au ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
List Of Terms Used In Bird Topography
The following is a list of terms used in bird topography: Plumage features * Back * Belly * Breast * Cheek * Chin * Crest * Crown * Crown patch * Ear-coverts * Eye-ring * Eyestripe (or eye line) * Feather, see category: :Feathers * Flanks * Forecrown * Gorget * Hood (or half-hood) * Lateral throat stripe * Lores * Malar * Mantle * Mask * Moustachial stripe * Nape * Nuchal collar * Operculum (on pigeons). * Pennaceous feathers * Postocular stripe * Remiges * Rump * Spectacles * Submoustachial stripe * Supercilium * Supraloral * Parts of the tail include: ** Rectrices ** Tail corner ** Terminal band ***Subterminal band * Throat * Undertail coverts * Upper mandible (or maxilla) * Uppertail coverts * Vent, crissum or cloaca ** Vent band *Parts of the wings include: ** Alula ** Apical spot ** Axillar ** Bend of wing ** Carpal covert ** Emargination ** Greater coverts ** Leading edge of wing ** Lesser coverts ** Marginal coverts ** Median coverts ** Mirror (on gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Bubalornis
''Bubalornis'' is a genus of bird in the family Ploceidae. Established by Andrew Smith in 1836, it contains the following species: The name ''Bubalornis'' is a combination of the Greek words ''boubalos'', meaning "buffalo" and ''ornis'', meaning "bird". The genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ... got its name from the buffalo weavers' habit of following herds of African Buffalo. References External links * * Bird genera Ploceidae Taxonomy articles created by Polbot {{Ploceidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Dinemellia Dinemelli
The white-headed buffalo weaver or white-faced buffalo-weaver (''Dinemellia dinemelli'') is a species of passerine bird in the family Ploceidae native to East Africa. The buffalo part of its name derives from its habit of following the African buffalo, feeding on disturbed insects. Two subspecies are recognized. Taxonomy The white-headed buffalo weaver was first described by the German naturalist Eduard Rüppell in 1845. Subspecies Two subspecies of the white-headed buffalo weaver are now recognized. Description The white-headed buffalo weaver is in length and in weight. In addition to its white head and underparts, the white-headed buffalo weaver has a vividly orange-red rump and undertail coverts. Its thighs are dark brown. Narrow white bands can be found on the wings especially when stretch his wings sideways. Both sexes are similar in plumage and hard to differentiate. The bill is conical and black. ''D. d. dinemelli'' has a brown tail, whereas ''D. d. boehmi'' has a bla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Pseudonigrita Arnaudi
The grey-capped social weaver (''Pseudonigrita arnaudi'') is a sparrow-like liver-colored bird, with a pale grey crown, a dark grey bill, a whitish eye-ring, horn-colored legs, with some black in the wing and a light terminal band in the tail, that builds roofed nests made of straws, breeds in colonies in thorny Acacia trees, and feeds in groups gathering grass seeds and insects. Male and female have near identical plumage. DNA-analysis confirms it is part of the weaver family. It is found in Ethiopia, Kenya, Somalia, South Sudan, Sudan, Tanzania, and Uganda. Taxonomy The French naturalist Charles Lucien Bonaparte described the grey-capped social weaver as ''Nigrita arnaudi'' in 1850. He chose the specific epithet to honor Joseph Pons d'Arnaud, the French explorer who had collected a specimen around 1841 near Juba on the White Nile, and sent it to the French Museum of Natural History. In 1903, the German zoologist Anton Reichenow assigned the species to his newly erected gen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Sporopipes
''Sporopipes'' is a genus of 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 fou ...s in the weaver family. Species External links * * References Ploceidae Bird genera Taxonomy articles created by Polbot {{Ploceidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
Amblyospiza Albifrons
The thick-billed weaver (''Amblyospiza albifrons''), or grosbeak weaver, is a distinctive and bold species of weaver bird that is native to the Afrotropics. It belongs to the monotypic genus ''Amblyospiza'' and subfamily Amblyospizinae. They have particularly strong mandibles, which are employed to extricate the seeds in nutlets and drupes, and their songs are comparatively unmusical and harsh. Their colonial nests are readily distinguishable from those of other weavers, due to their form and placement, and the fine strands used in their construction. They habitually fan and flick their tails. Taxonomy and systematics The generic name ''Amblyospiza'' was coined by Carl Jakob Sundevall in 1850 and means "blunt, finch", referencing the very large bill, while the specific name ''albifrons'' refers white forehead of the males. The thick-billed weaver was formally described as ''Pyrrhula albifrons'' in 1831 by the Irish zoologist and politician Nicholas Aylward Vigors from the coll ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] [Amazon] |
