White-crowned cliff chat | |
---|---|
White-crowned form of the male of the nominate subspecies | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Muscicapidae |
Genus: | Thamnolaea |
Species: | T. coronata |
Binomial name | |
Thamnolaea coronata | |
Synonyms | |
Myrmecocichla coronataReichenow, 1902 |
The white-crowned cliff chat (Thamnolaea coronata) is a species of chat in theMuscicapidae family, found in rocky habitats across much of western Sub-Saharan Africa.
The white-crowned cliff chat was formally described in 1902 by the German ornithologist Anton Reichenow, based on a specimen collected in Togo, West Africa. He placed it in the genus Thamnolaea and coined the binomial name Thamnolaea coronata. [2] [3] The genus name combines the Ancient Greek thamnos, meaning "bush", with laios, meaning "thrush". The specific epithet coronata is Latin for "crowned". [4]
Two subspecies are recognised: [5]
It is often considered a subspecies of the mocking cliff chat, [6] especially since many male birds, including individuals of the nominate subspecies, T. c. coronata, lack the distinctive white crown. [7]
There are two subspecies, of which only the nominate subspecies has the white crown. The crown is also variable in extent, sometimes limited to just a few white feathers. Males are black above with white shoulder epaulets, which are the largest in T. c. cavernicola, smaller in T. c. bambarae, and variable --- sometimes absent --- in the nominate subspecies,T. c. cavernicola. Males of all subspecies have rufous plumage on the belly and vent. A pale bar separates the breast from the rest of the underparts in T. c. cavernicola, but is absent in T. c. bambarae, and wider in the nominate subspecies. Additionally, T. c. cavernicola has a rufous rump.
Females resemble males but are duller, lacking the white shoulder epaulets and the white chest band. The female of the nominate subspecies, T. c. coronata, has a paler head, and her entire underpart plumage is rufous. The species reaches a length is 20 cm. [7]
It has a melodious, rich and far-carrying song with many mimicked phrases; and pairs often duet. [7]
The white-crowned cliff chat is found in inselbergs, cliffs, and escarpments within savanna habitats. [7]
It is usually seen in pairs and often slowly raises and lowers its tail, fanning it as it lifs it vertically over its back. [7]
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