Grey-headed canary-flycatcher | |
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Adult at Mae Wong National Park, Thailand | |
Call (recorded in southern India) | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Subclass: | Neornithes |
Order: | Passeriformes |
Superfamily: | Paroidea |
Family: | Stenostiridae |
Genus: | Culicicapa |
Species: | C. ceylonensis |
Binomial name | |
Culicicapa ceylonensis (Swainson, 1820) |
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Synonyms | |
Platyrhynchus ceylonensis (protonym) |
Platyrhynchus ceylonensis (protonym)
The grey-headed canary-flycatcher sometimes known as the grey-headed flycatcher (Culicicapa ceylonensis) is a species of small flycatcher-like bird found in tropical Asia. It has a square crest, a grey hood and yellow underparts. They are found mainly in forested habitats where they often join other birds in mixed-species foraging flocks. Pairs are often seen as they forage for insects by making flycatcher-like sallies and calling aloud. Several subspecies are recognized within their wide distribution range. In the past the genus Culicicapa was considered to be an Old World flycatcher but studies have found them to belong to a new family designated as the Stenostiridae or fairy flycatchers that include the African genera Stenostira and Elminia.
The grey-headed canary-flycatcher is about 12–13 cm long with a squarish grey head, a canary yellow belly and yellowish-green upperparts. They forage actively like flycatchers and perches in a very upright posture. The sexes are indistinguishable in plumage. They have a very flat bill (which gave it the earlier genus name of Platyrhynchus) which when seen from above look like an equilateral triangle and is fringed with long rictal bristles.
Across their range, populations differ in the shades of the colours and vary slightly in dimensions and several of these have been designated as subspecies. The nominate subspecies breeds in peninsular India in the hills of the Western Ghats, Nilgiris, central India and the Eastern Ghats (Lammasingi) and Sri Lanka. Subspecies calochrysea first described by Harry Oberholser in 1923 breeds along the Himalayas east to Myanmar and Thailand and winters across southern India. The nominate form is darker in shade. Subspecies antioxantha which was also described by Oberholser has a breeding range from southern Burma, Thailand through Malaysia to Java and Bali. The island population sejuncta described by Ernst Hartert in 1897 is found on Sumbawa, Flores and possibly on Lombok while connectens described by Bernhard Rensch in 1931 is restricted to the island of Sumba.