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The chestnut-headed bee-eater (Merops leschenaulti), or bay-headed bee-eater, is a bird in the bee-eater family Meropidae. It breeds on the Indian subcontinent and adjoining regions, ranging from India, Bangladesh and Sri Lanka across Southeast Asia to Indonesia.<ref name="iucn status 25 September 2021"/>
This species, like other bee-eaters, is a richly coloured, slender bird. It is predominantly green, with blue on the rump and lower belly. Its face and throat are yellow with a black eye stripe, and the crown and nape are rich chestnut. The thin curved bill is black. Sexes are alike, but young birds are duller. It is 18–20 cm long and lacks the two elongated central tail feathers possessed by most of its relatives.
TaxonomyEdit
The chestnut-headed bee-eater was formally described in 1817 by the French ornithologist Louis Pierre Vieillot under the current binomial name Merops leschenaulti. He specified the locality as Java. This was an error as this species does not occur there and the locality has been designated as Sri Lanka.<ref name=vieillot>Template:Cite book</ref><ref>Template:Cite book</ref> The specific epithet was chosen to honour the French naturalist and collector Jean-Baptiste Leschenault de La Tour who had brought Vieillot's specimen to France.<ref name=vieillot/><ref>Template:Cite book</ref>
Three subspecies are recognised:<ref name=ioc>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
- M. l. leschenaulti Vieillot, 1817 – India and Sri Lanka to central south China, Indochina and Malay Peninsula
- M. l. quinticolor Vieillot, 1817 – far south Sumatra, Java and Bali
- M. l. andamanensis Marien, 1950 – Andaman Islands
DescriptionEdit
The chestnut-headed bee-eater is Template:Cvt in overall length and weighs Template:Cvt. The sexes are similar in appearance.<ref name=fry>Template:Cite book</ref> The forehead, crown, nape, Template:Birdgloss and Template:Birdgloss are bright chestnut. The lores are black, continued as a thin band under the eye and ear-coverts. The Template:Birdgloss, lower back and Template:Birdgloss are green, the latter are tipped with bluish. The Template:Birdgloss and Template:Birdgloss are pale shining blue. The Template:Birdgloss and Template:Birdgloss are green, rufous on the inner webs, and all tipped dusky. The central tail-feathers are bluish on the outer, and green on the inner webs; the others are green, margined on the inner web with brown and all tipped dusky. The sides of the face, chin and throat are yellow; below this a broad band of chestnut extending to the sides of the neck and meeting the chestnut of the upper plumage; below this again is a Template:Birdgloss formed by a short distinct band of black and then an ill-defined band of yellow. The remainder of lower plumage is green tipped with blue, especially on the Template:Birdgloss and Template:Birdgloss. The iris is red, the bill is black, the legs are dusky black and the claws dark horn-colour.<ref>Template:Cite book</ref> The juveniles are like the adult but duller. They a green forehead, forecrown and Template:Birdgloss. The lower throat is yellow rather than chestnut and the gorget band is indistinct. The breast and belly are paler and more olive in colour than the adult.<ref name=fry/>
The Javan sub-species, M. l. quinticolor, differs in having the space from the bill down to the black pectoral band pure yellow without any chestnut, and in having an entirely blue tail.<ref name=fry/> Race andamanensis found in the Andamans is slightly larger than the Indian race.<ref name=rasmussen>Template:Cite book</ref>
Distribution and habitatEdit
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This is a bird which breeds in sub-tropical open woodland, often near water. It is most common in highland areas.
BehaviourEdit
These birds are gregarious and feed and roost communally.
BreedingEdit
Chestnut-headed bee-eaters usually nest in small colonies in sandy banks. They make a relatively long tunnel in which the five to six spherical white eggs are laid. Both the male and the female take care of the eggs and feed the young.<ref name=fry/>
Food and feedingEdit
As the name suggests, bee-eaters predominantly eat insects, especially bees, wasps and hornets, which are caught in the air by sorties from an open perch.<ref name=fry/>