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Black Cuckoo
The black cuckoo (''Cuculus clamosus'') is a species of cuckoo in the family Cuculidae. The species is distributed widely across sub-Saharan Africa. There are two subspecies. This cuckoo has a very wide range and is quite common so it is classified as a least-concern species by the International Union for Conservation of Nature. Description The black cuckoo is a medium-sized cuckoo. The sexes are similar, the plumage varying by subspecies; ''Cuculus clamosus clamosus'' has upper parts black glossed with green, slatey-grey wings and black tail tipped with white and sometimes with the outer feathers barred or spotted with white or buff; ''Cuculus clamosus gabonensis'' is mostly black with a red throat and black and white barring on the belly. Distribution and habitat The subspecies ''Cuculus clamosus gabonensis'' is a resident in Central Africa, whereas the Southern African subspecies ''Cuculus clamosus clamosus'' is migratory, breeding in Southern Africa in September to Dece ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Cuckoo (Cuculus Clamosus) (022A-WA03044X0014-0013M0)
The black cuckoo (''Cuculus clamosus'') is a species of cuckoo in the family Cuculidae. The species is distributed widely across sub-Saharan Africa. There are two subspecies. This cuckoo has a very wide range and is quite common so it is classified as a least-concern species by the International Union for Conservation of Nature. Description The black cuckoo is a medium-sized cuckoo. The sexes are similar, the plumage varying by subspecies; ''Cuculus clamosus clamosus'' has upper parts black glossed with green, slatey-grey wings and black tail tipped with white and sometimes with the outer feathers barred or spotted with white or buff; ''Cuculus clamosus gabonensis'' is mostly black with a red throat and black and white barring on the belly. Distribution and habitat The subspecies ''Cuculus clamosus gabonensis'' is a resident in Central Africa, whereas the Southern African subspecies ''Cuculus clamosus clamosus'' is migratory, breeding in Southern Africa in September to Decemb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brood Parasite
Brood parasites are animals that rely on others to raise their young. The strategy appears among birds, insects and fish. The brood parasite manipulates a host, either of the same or of another species, to raise its young as if it were its own, usually using egg mimicry, with eggs that resemble the host's. The evolutionary strategy relieves the parasitic parents from the investment of rearing young. This benefit comes at the cost of provoking an evolutionary arms race between parasite and host as they coevolve: many hosts have developed strong defenses against brood parasitism, such as recognizing and ejecting parasitic eggs, or abandoning parasitized nests and starting over. It is less obvious why most hosts do care for parasite nestlings, given that for example cuckoo chicks differ markedly from host chicks in size and appearance. One explanation, the mafia hypothesis, proposes that parasitic adults retaliate by destroying host nests where rejection has occurred; there ... [...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 swim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuckoos
Cuckoos are birds in the Cuculidae family, the sole taxon in the order Cuculiformes . The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals and anis. The coucals and anis are sometimes separated as distinct families, the Centropodidae and Crotophagidae respectively. The cuckoo order Cuculiformes is one of three that make up the Otidimorphae, the other two being the turacos and the bustards. The family Cuculidae contains 150 species which are divided into 33 genera. The cuckoos are generally medium-sized slender birds. Most species live in trees, though a sizeable minority are ground-dwelling. The family has a cosmopolitan distribution; the majority of species are tropical. Some species are migratory. The cuckoos feed on insects, insect larvae and a variety of other animals, as well as fruit. Some species are brood parasites, laying their eggs in the nests of other species and giving rise to the metaphor ''cuckoo's egg'', bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cuculus
''Cuculus'' is a genus of cuckoos which has representatives in most of the Old World, although the greatest diversity is in tropical southern and southeastern Asia. Taxonomy The genus ''Cuculus'' was introduced in 1758 by the Swedish naturalist Carl Linnaeus in the tenth edition of his ''Systema Naturae''. The genus name is the Latin word for "cuckoo". The type species is the common cuckoo (''Cuculus canorus''). Species The genus contains 11 species: * Black cuckoo, ''Cuculus clamosus'' * Red-chested cuckoo, ''Cuculus solitarius'' * Lesser cuckoo, ''Cuculus poliocephalus'' * Sulawesi cuckoo or Sulawesi hawk-cuckoo, ''Cuculus crassirostris'' * Indian cuckoo, ''Cuculus micropterus'' * Madagascar cuckoo, ''Cuculus rochii'' * African cuckoo, ''Cuculus gularis'' * Himalayan cuckoo, ''Cuculus saturatus'' * Oriental cuckoo, ''Cuculus optatus'' (formerly ''horsfieldi'') (split from ''C. saturatus'') * Sunda cuckoo, ''Cuculus lepidus'' (split from ''C. saturatus'') * Commo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crimson-breasted Shrike
The crimson-breasted shrike (''Laniarius atrococcineus'') or the crimson-breasted gonolek, ('gonolek' - supposedly imitative of its call), or the crimson-breasted boubou, is a southern African bird. It has black upper parts with a white flash on the wing, and bright scarlet underparts. The International Union for Conservation of Nature has rated it as a "least-concern species". Taxonomy The species was first collected by William John Burchell in 1811 near the confluence of the Vaal and Orange Rivers. He named it ''atrococcineus'' meaning 'black/red', finding the striking colour combination quite remarkable. The generic name ''Laniarius'' was coined by the French ornithologist Louis Jean Pierre Vieillot and was meant to call attention to the butcher-like habits of the group. In South West Africa its colours reminded Germans of their homeland flag and it therefore became the ''Reichsvogel'' ("Empire bird"). The species is closely related to two other bushshrikes, the yellow-crowned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tropical Boubou
The tropical boubou or bell shrike (''Laniarius aethiopicus'') is a medium-sized passerine bird of sub-Saharan Africa. This very diverse "species" with its numerous subspecies and morphs has since long posed a taxonomic problem, and recent research suggests it is a cryptic species complex that has now been split into several species.Harris & Franklin (2000), Nguembock ''et al.'' (2008) Description The tropical boubou is fairly large for its family (bushshrikes), measuring 23–25 cm in length. Its weight can vary between about 38-70 g, but typically adults weigh between 50 and 60 g. Females are on average a bit smaller than males, but individual variation is so large that for most practical purposes the sexes seem to be of identical size. The wing measures about 98 mm on average (between 85 and 110), the tail is a mere two millimetres longer both on average and as regards variation. The tarsus is 29–37 mm long, 33 mm on average, while the bill's expos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bushshrike
The bushshrikes are smallish passerine birds. They were formerly classed with the true shrikes in the family Laniidae, but are now considered sufficiently distinctive to be separated from that group as the family Malaconotidae, a name that alludes to their fluffy back and rump feathers. Like their shrike-like relatives, the helmetshrikes, the bushshrikes have arisen in Africa in relatively recent times. The family is endemic to sub-Saharan Africa but completely absent from Madagascar, where the vangas are their closest relatives. They are found in scrub or open woodland, and less often in marshes, Afromontane or tropical forest. They are similar in habits to shrikes, hunting insects and other small prey from a perch on a bush. Although similar in build to the shrikes, these tend to be either colourful species or largely black; some species are quite secretive. Some bushshrikes have flamboyant displays. The male puffbacks puff out the loose feathers on their rump and lower back, ... [...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, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Latham (ornithologist)
John Latham (27 June 1740 – 4 February 1837) was an English physician, naturalist and author. His main works were ''A General Synopsis of Birds'' (1781–1801) and ''General History of Birds'' (1821–1828). He was able to examine specimens of Australian birds which reached England in the last twenty years of the 18th century, and was responsible for providing English names for many of them. He named some of Australia's most famous birds, including the emu, sulphur-crested cockatoo, wedge-tailed eagle, superb lyrebird, Australian magpie, magpie-lark and pheasant coucal. He was also the first to describe the hyacinth macaw. Latham has been called the "grandfather" of Australian ornithology. Biography John Latham was born on 27 June 1740 at Eltham in northwest Kent. He was the eldest son of John Latham (died 1788), a surgeon, and his mother, who was a descendant of the Sothebys, in Yorkshire. He was educated at Merchant Taylors' School and then studied anatomy under Wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumage
Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can be different colour morphs. The placement of feathers on a bird is not haphazard, but rather emerge in organized, overlapping rows and groups, and these are known by standardized names. Most birds moult twice a year, resulting in a breeding or ''nuptial plumage'' and a ''basic plumage''. Many ducks and some other species such as the red junglefowl have males wearing a bright nuptial plumage while breeding and a drab ''eclipse plumage'' for some months afterward. The painted bunting's juveniles have two inserted moults in their first autumn, each yielding plumage like an adult female. The first starts a few days after fledging replacing the ''juvenile plumage'' with an ''auxiliary formative plumage''; the second a month o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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