Tchagra | |
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Brown-crowned (above) and Black-crowned tchagra (below) | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Malaconotidae |
Genus: | Tchagra Lesson, 1831 |
Type species | |
Thamnophilus tchagra [1] Vieillot, 1816 | |
Species | |
See text |
The tchagras are passerine birds in the bushshrike family, which are closely related to the true shrikes in the family Laniidae, and were once included in that group.
These are long-tailed birds, typically with a grey or grey-brown back, brown wings and grey and whitish underparts. The head pattern is distinctive, with a dark cap and black eyestripe separated by a white supercilium. The bill is strong and hooked.
The male and female are similar in plumage in all tchagra species, but distinguishable from immature birds.
These are solitary birds which tend to skulk low down or on the ground. They have distinctive whistled calls and can be readily tempted into sight by imitating the call, presumably because the tchagra is concerned that there is an intruder in its territory.
These are species typically of scrub, open woodland, semi-desert and cultivation in sub-Saharan Africa. They hunt large insects from a low perch in a bush, and the larger species like black-crowned tchagra will also take vertebrate prey such as frogs and snakes.
The genus Tchagra was introduced by the French naturalist René Lesson in 1831 with the southern tchagra as the type species. [2] The genus contains four species: [3]
Image | Scientific name | Common Name | Distribution |
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Tchagra australis | Brown-crowned tchagra or brown-headed tchagra | Angola, Benin, Botswana, Burundi, Cameroon, Central African Republic, Republic of the Congo, DRC, Ivory Coast, Gabon, Ghana, Guinea, Kenya, Liberia, Malawi, Mali, Mozambique, Namibia, Nigeria, Rwanda, Sierra Leone, South Africa, South Sudan, Swaziland, Tanzania, Togo, Uganda, Zambia, and Zimbabwe. | |
Tchagra jamesi | Three-streaked tchagra | Ethiopia, Kenya, Somalia, South Sudan, Tanzania, and Uganda | |
Tchagra tchagra | Southern tchagra | southern and south-eastern South Africa and Swaziland. | |
Tchagra senegalus | Black-crowned tchagra | Arabian peninsula and most of Africa in scrub | |
The marsh tchagra Bocagia minuta is sometimes placed in the genus. The dark Angolan subspecies of marsh tchagra was formerly sometimes split as Anchieta's tchagra, Tchagra anchietae, named after Portuguese explorer José Alberto de Oliveira Anchieta by his zoologist compatriot José Vicente Barbosa du Bocage in 1869.
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.
The black-crowned tchagra is a bushshrike. This family of passerine birds is closely related to the true shrikes in the family Laniidae, and was once included in that group.
The southern boubou is a bushshrike. Though these passerine birds and their relations were once included with true shrikes in the Laniidae, they are not closely related to that family.
The southern tchagra is a passerine bird found in dense scrub and coastal bush in southern and south-eastern South Africa and Eswatini.
The brubru is a species of bushshrike found in most of Sub-Saharan Africa. It is the only member of the genus Nilaus.
The grey-headed bushshrike, colloquially known as the ghostbird, is a species of passerine bird in the family Malaconotidae. It is widespread throughout sub-Saharan Africa, although relatively absent in Central Africa and the interior of southern Africa. It is the most widespread species of its genus, which consists of large bushshrikes with massive bills and mournful hooting calls. It occurs sparsely in a range of wooded habitats, though typically in denser vegetation within dry or moist savannah. The monogamous pairs occupy woodland with sufficient cover. They are sedentary, but will undertake limited post-breeding movements.
Lagden's bushshrike is a bird species in the bushshrike family (Malaconotidae) native to Africa. It is a stocky bird with yellow or orange-yellow underparts, olive green upperparts, a grey head and heavy bill. Two subspecies are recognised, one found in west Africa and one in central Africa.
The marsh tchagra or blackcap bush-shrike is a species of passerine bird placed in the monotypic genus Bocagia in the family Malaconotidae. It is native to marshes in the tropics and subtropics of Africa. It is sometimes placed in the genus Tchagra.