White-bellied Blue Robin
Encyclopedia
The White-bellied Blue Robin (Myiomela albiventris) refers to a kind of bird
in the Muscicapidae family endemic to the Shola
forests of the higher hills of southern India
. The Nilgiri Blue Robin and this species were once considered as sub-species of a single species (M. major) and in 2005 were elevated again to full species by Pamela C. Rasmussen
, a treatment that is followed by a few lists. The genus placement remains uncertain. This small bird is found on the forest floor and undergrowth of dense forest patches sheltered in the valleys of montane grassland, a restricted and threatened habitat.
The White-bellied Blue Robin (M. albiventris) has a black face mask with a short whitish brow. The upperside and breast are slaty blue grading to grey on the flanks. The centre of the belly and vent is white. This can appear somewhat like the male of the syntopic White-bellied Blue Flycatcher
(Cyornis pallipes) but can be distinguished by behaviour apart from the longer legs and greyer colouration.
described a new species Callene albiventris obtained by Rev. S. Fairbank from the Palni Hills. Blanford noted the similarity to the Nilgiri form while also noting the geographical isolation of the two forms and relation to species from northeastern India. Eugene Oates
in the first edition of The Fauna of British India, Including Ceylon and Burma moved the species back into the genus Brachypteryx stating that they were congeneric with Brachypteryx montana while also noting that the young birds were speckled as in true-thrushes like Callene (as represented by the Blue-fronted Robin). Oates also used the name "White-bellied Short-wing". This genus placement was carried on in the second edition of The Fauna of British India, Including Ceylon and Burma. Including Ceylon and Burma. (1924) by E. C. Stuart Baker
but was demoted into a subspecies on the basis of a specimen collected by T. F. Bourdillon
at Mynal which was claimed to be intermediate to the two forms. Claud Buchanan Ticehurst
in 1939 reaffirmed the genus placement. This treatment as subspecies was carried forward by Salim Ali
and Sidney Dillon Ripley
in their "Handbook" until the old two species were restored by P C Rasmussen in 2005. In the Birds of South Asia
(2005), however they moved the species tentatively into the genus Myiomela based on morphological similarities and pointed out that the placement in Brachypteryx was in error.
In 2010, DNA sequence studies suggested an ancient divergence in these two populations and confirmed their elevation to full species. The genus position was however not settled. Another 2010 molecular phylogenetics study suggested that the genus Brachypteryx (the taxa sampled however, did not include the peninsular Indian forms) which was earlier thought to belong to the thrush family Turdidae belonged to the Old World flycatcher family Muscicapidae. The type species of Brachypteryx, B. montana, shows strong sexual dimorphism.
is forest patches in the valleys of high altitude grasslands known as shola
s. The species has been found to occur only above 1200 m altitude in the higher hill ranges of southern India. These forest patches are highly restricted in size and the species is thus threatened by habitat loss.
Populations are mainly in the Palni and Ashambu Hills, but also found in some of the other associated ranges to the south of the Palghat gap. These include the Nelliampathy, Cardamom, Chemungi and Chimpani Hills.
Two greyish green and brown-marked eggs are laid during the breeding season that varies from April to June, after the rains. The nest is placed in a tree hole or placed on a bank and is made of moss and fibrous roots and placed low over the ground.
Bird
Birds are feathered, winged, bipedal, endothermic , egg-laying, vertebrate animals. Around 10,000 living species and 188 families makes them the most speciose class of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic to the Antarctic. Extant birds range in size from...
in the Muscicapidae family endemic to the Shola
Shola
Sholas are patches of stunted evergreen tropical and subtropical moist broadleaf forest found in valleys amid rolling grassland in the higher montane regions of South India. These patches of shola forest are found mainly in the valleys and are usually separated from one another by undulating...
forests of the higher hills of southern India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...
. The Nilgiri Blue Robin and this species were once considered as sub-species of a single species (M. major) and in 2005 were elevated again to full species by Pamela C. Rasmussen
Pamela C. Rasmussen
Professor Pamela Cecile Rasmussen is a prominent American ornithologist and expert on Asian birds. She was formerly a research associate at the Smithsonian Institution in Washington D.C., and is based at the Michigan State University...
, a treatment that is followed by a few lists. The genus placement remains uncertain. This small bird is found on the forest floor and undergrowth of dense forest patches sheltered in the valleys of montane grassland, a restricted and threatened habitat.
Description
This chat-like bird is long-legged and appears chunky with its short tail and wing. Although sharing similar habits and shape, the two species differ in plumage and both may show slight sexual dimorphism. Differences in iris colour between the females have been suggested for M. albiventris.The White-bellied Blue Robin (M. albiventris) has a black face mask with a short whitish brow. The upperside and breast are slaty blue grading to grey on the flanks. The centre of the belly and vent is white. This can appear somewhat like the male of the syntopic White-bellied Blue Flycatcher
White-bellied Blue Flycatcher
The White-bellied Blue Flycatcher, Cyornis pallipes, is a small passerine bird in the flycatcher family Muscicapidae.This is an insectivorous species which breeds in the Western Ghats of southwest India....
(Cyornis pallipes) but can be distinguished by behaviour apart from the longer legs and greyer colouration.
Taxonomy and systematics
In 1867, W T BlanfordWilliam Thomas Blanford
William Thomas Blanford was an English geologist and naturalist. He is best remembered as the editor of a major series on The Fauna of British India, Including Ceylon and Burma.-Biography:Blanford was born in London...
described a new species Callene albiventris obtained by Rev. S. Fairbank from the Palni Hills. Blanford noted the similarity to the Nilgiri form while also noting the geographical isolation of the two forms and relation to species from northeastern India. Eugene Oates
Eugene William Oates
Eugene William Oates was an English naturalist.Oates was born in Sicily and educated in Bath, England. For a time he attended Sydney College, Bath and later under private tutors. He was a civil servant in the Public Works Department in India and Burma from 1867 to 1899...
in the first edition of The Fauna of British India, Including Ceylon and Burma moved the species back into the genus Brachypteryx stating that they were congeneric with Brachypteryx montana while also noting that the young birds were speckled as in true-thrushes like Callene (as represented by the Blue-fronted Robin). Oates also used the name "White-bellied Short-wing". This genus placement was carried on in the second edition of The Fauna of British India, Including Ceylon and Burma. Including Ceylon and Burma. (1924) by E. C. Stuart Baker
E. C. Stuart Baker
Edward Charles Stuart Baker CIE OBE FZS FLS was a British ornithologist and police officer.-Life and career:Baker was educated at Trinity College, Stratford-upon-Avon and in 1883 followed his father into the Indian Police Service. He spent most of his career in India in the Assam Police, rising to...
but was demoted into a subspecies on the basis of a specimen collected by T. F. Bourdillon
T. F. Bourdillon
Thomas Fulton Bourdillon was Conservator of Forests in the princely state of Travancore.He came to Travancore as a planter in 1871 and appointed by the Travancore Durbar in 1886 as special forest officer to explore the forests and to report on their resources...
at Mynal which was claimed to be intermediate to the two forms. Claud Buchanan Ticehurst
Claud Buchanan Ticehurst
Claud Buchanan Ticehurst was a British ornithologist.Born at St Leonards-on-Sea, Sussex, Ticehurst was educated first at Tonbridge School and subsequently attended St John's College, Cambridge...
in 1939 reaffirmed the genus placement. This treatment as subspecies was carried forward by Salim Ali
Salim Ali
Sálim Moizuddin Abdul Ali was an Indian ornithologist and naturalist. Known as the "birdman of India", Salim Ali was among the first Indians to conduct systematic bird surveys across India and his bird books helped develop ornithology...
and Sidney Dillon Ripley
Sidney Dillon Ripley
Sidney Dillon Ripley was an American ornithologist and wildlife conservationist. He served as Secretary of the Smithsonian Institution from 1964-1984.-Biography:...
in their "Handbook" until the old two species were restored by P C Rasmussen in 2005. In the Birds of South Asia
Birds of South Asia. The Ripley Guide
Birds of South Asia. The Ripley Guide by Pamela C. Rasmussen and John C. Anderton is a two-volume ornithological handbook, covering the birds of South Asia, published in 2005 by the Smithsonian Institution and Lynx Edicions...
(2005), however they moved the species tentatively into the genus Myiomela based on morphological similarities and pointed out that the placement in Brachypteryx was in error.
In 2010, DNA sequence studies suggested an ancient divergence in these two populations and confirmed their elevation to full species. The genus position was however not settled. Another 2010 molecular phylogenetics study suggested that the genus Brachypteryx (the taxa sampled however, did not include the peninsular Indian forms) which was earlier thought to belong to the thrush family Turdidae belonged to the Old World flycatcher family Muscicapidae. The type species of Brachypteryx, B. montana, shows strong sexual dimorphism.
Habitat and distribution
Its natural habitatHabitat
* Habitat , a place where a species lives and grows*Human habitat, a place where humans live, work or play** Space habitat, a space station intended as a permanent settlement...
is forest patches in the valleys of high altitude grasslands known as shola
Shola
Sholas are patches of stunted evergreen tropical and subtropical moist broadleaf forest found in valleys amid rolling grassland in the higher montane regions of South India. These patches of shola forest are found mainly in the valleys and are usually separated from one another by undulating...
s. The species has been found to occur only above 1200 m altitude in the higher hill ranges of southern India. These forest patches are highly restricted in size and the species is thus threatened by habitat loss.
Populations are mainly in the Palni and Ashambu Hills, but also found in some of the other associated ranges to the south of the Palghat gap. These include the Nelliampathy, Cardamom, Chemungi and Chimpani Hills.
Behaviour and ecology
These birds are found in dense forest in the dark lower canopy and forest floor. They are skulking but can be confiding. They call frequently with tit-like notes and harsh rattles. The song of M. albiventris is said to have a higher pitched and more musical song. Birds have been noted to moult their tail feathers in the beginning of June. Little is known of their dispersal, longevity and other aspects of life history although more than 133 birds have been ringed.Two greyish green and brown-marked eggs are laid during the breeding season that varies from April to June, after the rains. The nest is placed in a tree hole or placed on a bank and is made of moss and fibrous roots and placed low over the ground.