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Levaillant's Cuckoo
Levaillant's cuckoo (''Clamator levaillantii'') is a cuckoo which is a resident breeding species in Africa south of the Sahara. It is found in bushy habitats. It is a brood parasite, using the nests of bulbuls and babblers. It was named in honour of the French explorer, collector and ornithologist, François Le Vaillant François () is a French masculine given name and surname, equivalent to the English name Francis. People with the given name * Francis I of France, King of France (), known as "the Father and Restorer of Letters" * Francis II of France, Kin .... Description left, 180px, View of upperparts The cuckoo is 37.5 cm (15 in) long, longer tailed than pied cuckoo, and with a more heavily streaked throat. There are two colour morphs. The light morph is black above, faintly glossed bluish or greenish. The throat streaking may extend on to the sides. The primaries and rectrix tips are white. The dark morph is black except for the white primary patc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William John Swainson
William John Swainson FLS, FRS (8 October 1789 – 6 December 1855), was an English ornithologist, malacologist, conchologist, entomologist and artist. Life Swainson was born in Dover Place, St Mary Newington, London, the eldest son of John Timothy Swainson the Second (1756–1824), an original fellow of the Linnean Society. He was cousin of the amateur botanist Isaac Swainson.Etymologisches Worterbuch der botanischen Pflanzennamen by H. Genaust. Review by Paul A. Fryxell ''Taxon'', Vol. 38(2), 245–246 (1989). His father's family originated in Lancashire, and both grandfather and father held high posts in Her Majesty's Customs, the father becoming Collector at Liverpool. William, whose formal education was curtailed because of an impediment in his speech, joined the Liverpool Customs as a junior clerk at the age of 14."William Swainson F.R.S, F.L.S., Naturalist and Artist: Diaries 1808–1838: Sicily, Malta, Greece, Italy and Brazil." G .M. Swainson, Palmerston, NZ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morph (zoology)
In biology, polymorphism is the occurrence of two or more clearly different morphs or forms, also referred to as alternative ''phenotypes'', in the population of a species. To be classified as such, morphs must occupy the same habitat at the same time and belong to a panmictic population (one with random mating). Ford E.B. 1965. ''Genetic polymorphism''. Faber & Faber, London. Put simply, polymorphism is when there are two or more possibilities of a trait on a gene. For example, there is more than one possible trait in terms of a jaguar's skin colouring; they can be light morph or dark morph. Due to having more than one possible variation for this gene, it is termed 'polymorphism'. However, if the jaguar has only one possible trait for that gene, it would be termed "monomorphic". For example, if there was only one possible skin colour that a jaguar could have, it would be termed monomorphic. The term polyphenism can be used to clarify that the different forms arise from the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Sub-Saharan 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. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clamator
''Clamator'' is a genus of large brood-parasitic cuckoos with crests and graduated tails. The genus was erected by German naturalist Johann Jakob Kaup in 1829 with the great spotted cuckoo (''Clamator glandarius'') as the type species. The name ''Clamator'' is Latin for "shouter" from ''clamare'', "to shout". There are four species: ''Clamator'' cuckoos are found in warmer parts of southern Europe and Asia, and in Africa south of the Sahara Desert. These are birds of warm open scrubby habitats, but some species are at least partially migratory, leaving for warmer and wetter areas in winter. These are large cuckoos, all at least long, with broad chestnut wings and long narrow tails. They are strikingly patterned with black, white and brown plumage. The sexes are similar but the juvenile plumages are distinctive. The two African species each also have two distinct colour morphs, light and dark. All the ''Clamator'' cuckoos are brood parasites, which lay a single egg i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arrow-marked Babbler
The arrow-marked babbler (''Turdoides jardineii'') is a species of bird in the family Leiothrichidae. It is native to woodlands in the southern Afrotropics. Distribution and habitat It is found in Angola, Botswana, Burundi, Republic of the Congo, DRC, Eswatini, Gabon, Kenya, Malawi, Mozambique, Namibia, Rwanda, South Africa, Tanzania, Uganda, Zambia, and Zimbabwe. Its natural habitats are subtropical or tropical dry forest, dry savanna, and subtropical or tropical moist shrubland. Description The arrow-marked babbler is a medium-sized babbler, in length and weighing . The common name for the species is derived from its plumage, which is brownish-grey above and lighter below, with white tips to the feathers on the throat, neck and head. The outer iris is bright red and the inner bright yellow or orange. Males and females are identical in appearance. Juveniles have brown eyes and less arrow-shaped streaking on the breast. Behaviour The arrow-marked babbler lives in social groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hartlaub's Babbler
Hartlaub's babbler (''Turdoides hartlaubii'') or the Angola babbler, is a species of bird in the family Leiothrichidae, which is native to south central Africa. The common name and Latin binomial commemorate the German physician and ornithologist Gustav Hartlaub. Range The species is found in Angola, Botswana, Burundi, DRC, Namibia, Rwanda, Tanzania, Zambia, and Zimbabwe. Gallery File:Hartlaub's Babbler.jpg, In a garden at Shakawe, Botswana, showing white vent plumage File:Hartlaub's babbler (Turdoides hartlaubii) - Flickr - Lip Kee (1).jpg, Perched in woodland at Moremi, Botswana File:Hartlaub's Babbler, Kavango, Namibia (19540601902).jpg, View of the white rump plumage References *Collar, N. J. & Robson, C. 2007. Family Timaliidae (Babblers) pp. 70 – 291 in; del Hoyo, J., Elliott, A. & Christie, D.A. eds. ''Handbook of the Birds of the World The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bare-cheeked Babbler
The bare-cheeked babbler (''Turdoides gymnogenys'') is a species of bird in the family Leiothrichidae. It is found in Angola and Namibia. Its natural habitats are subtropical or tropical dry forest and subtropical or tropical dry shrubland. left, 240px, Individual at Hobatere, Namibia References *Collar, N. J. & Robson, C. 2007. Family Timaliidae (Babblers) pp. 70 – 291 in; del Hoyo, J., Elliott, A. & Christie, D.A. eds. ''Handbook of the Birds of the World The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. T ...'', Vol. 12. Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona. External links * Bare-cheeked babbler Species text in The Atlas of Southern African Birds {{Taxonbar, from=Q1091274 bare-cheeked babbler Birds of Central Africa Birds of Southern Africa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Pied Babbler
The southern pied babbler (''Turdoides bicolor'') is a species of bird in the family Leiothrichidae, found in dry savannah of Botswana, Namibia, South Africa, and Zimbabwe. Description The southern pied babbler is a medium-sized cooperatively breeding passerine bird. Groups range in size from 2-16 adults, but pairs are rare. The species is sexually monomorphic, with males and females indistinguishable from physical characteristics. Each group comprises a dominant breeding pair that monopolise access to breeding opportunities. Recent genetic research has confirmed that these dominant pairs are responsible for more than 95% of young hatched. Occasional mixed parentage has been observed, but is predictable in most cases: subordinates primarily gain parentage when a new (unrelated) immigrant disperses into the group, or a new group is founded. All group members cooperate to help raise the young hatched from a single clutch. Clutch size varies between two and five, with a modal clutch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clamator Levaillantii MHNT
''Clamator'' is a genus of large brood-parasitic cuckoos with crests and graduated tails. The genus was erected by German naturalist Johann Jakob Kaup in 1829 with the great spotted cuckoo (''Clamator glandarius'') as the type species. The name ''Clamator'' is Latin for "shouter" from ''clamare'', "to shout". There are four species: ''Clamator'' cuckoos are found in warmer parts of southern Europe and Asia, and in Africa south of the Sahara Desert. These are birds of warm open scrubby habitats, but some species are at least partially migratory, leaving for warmer and wetter areas in winter. These are large cuckoos, all at least long, with broad chestnut wings and long narrow tails. They are strikingly patterned with black, white and brown plumage. The sexes are similar but the juvenile plumages are distinctive. The two African species each also have two distinct colour morphs, light and dark. All the ''Clamator'' cuckoos are brood parasites, which lay a single egg in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feather
Feathers are epidermal growths that form a distinctive outer covering, or plumage, on both avian (bird) and some non-avian dinosaurs and other archosaurs. They are the most complex integumentary structures found in vertebrates and a premier example of a complex evolutionary novelty. They are among the characteristics that distinguish the extant birds from other living groups. Although feathers cover most of the bird's body, they arise only from certain well-defined tracts on the skin. They aid in flight, thermal insulation, and waterproofing. In addition, coloration helps in communication and protection. Plumology (or plumage science) is the name for the science that is associated with the study of feathers. Feathers have a number of utilitarian, cultural, and religious uses. Feathers are both soft and excellent at trapping heat; thus, they are sometimes used in high-class bedding, especially pillows, blankets, and mattresses. They are also used as filling for winter cloth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pied Cuckoo
The Jacobin cuckoo (''Clamator jacobinus''), also pied cuckoo or pied crested cuckoo, is a member of the cuckoo order of birds that is found in Africa and Asia. It is partially migratory and in India, it has been considered a harbinger of the monsoon rains due to the timing of its arrival. It has been associated with a bird in Indian mythology and poetry, known as the ''chataka'' (Sanskrit: चातक) represented as a bird with a beak on its head that waits for rains to quench its thirst. Taxonomy The Jacobin cuckoo was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in his ''Histoire Naturelle des Oiseaux'' in 1780. The bird was also illustrated in a hand-coloured plate engraved by François-Nicolas Martinet in the ''Planches Enluminées D'Histoire Naturelle''. This was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Africa
Africa is the world's second-largest and second-most populous continent, after Asia in both cases. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20% of its land area.Sayre, April Pulley (1999), ''Africa'', Twenty-First Century Books. . With billion people as of , it accounts for about of the world's human population. Africa's population is the youngest amongst all the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4. Despite a wide range of natural resources, Africa is the least wealthy continent per capita and second-least wealthy by total wealth, behind Oceania. Scholars have attributed this to different factors including geography, climate, tribalism, colonialism, the Cold War, neocolonialism, lack of democracy, and corruption. Despite this low concentration of wealth, recent economic expansion and the large and young population make Afr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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