Purple sunbird | |
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Male C. a. intermedius in breeding plumage | |
Male C. a. asiaticus non-breeding plumage | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Nectariniidae |
Genus: | Cinnyris |
Species: | C. asiaticus |
Binomial name | |
Cinnyris asiaticus (Latham, 1790) | |
Synonyms | |
Arachnechthra intermedia |
The purple sunbird (Cinnyris asiaticus) is a small bird in the sunbird family. It occurs in parts of the Arabian peninsula and South and Southeast Asia. It has a fast and direct flight and can take nectar by hovering like a hummingbird but often perches at the base of flowers. It feeds mainly on nectar and insects, especially when feeding young. The males can appear all black in harsh sunlight but the purple iridescence is visible on closer observation or under good light conditions. Females are olive above and yellowish below.
The purple sunbird has a relatively short bill, a dark and short square ended tail with distinctive sexual dimorphism. Less than 10 cm (3.9 in) long they have a down-curved bill with brush-tipped tubular tongues that aid in nectar feeding. The male is glossy metallic bluish to purplish [2] black on the upper parts with the wings appearing dark brown. The breeding male also has underparts of the same purplish black, but non-breeding males may show a central streak of black on yellow underparts. In the breeding plumage, the male can be confused with the syntopic Loten's sunbird which has a long bill and a distinctive broad maroon band on the breast. Breeding males will sometimes show their yellow pectoral tufts in displays. There is a patch of bright blue on the shoulder of breeding males. [3] The maroon shine on the feathers of the collar around the neck is visible mainly during the breeding seasons. [4] [5] [6] [7] [8]
Females are olive brown above with a yellowish underside. There is a pale supercilium beyond the eye. There is a darkish eye stripe. The throat and breast are yellow, becoming pale towards the vent. The outer tail feathers are tipped in white both in the male and female. [3] The young are just like females in plumage, however, the males get black feathers as they become adults. They are seen in pairs or small groups and aggregations may be found in gardens with suitable flowers. They feed mainly on nectar but also take fruits and insects. Groups of as many as 40 to 50 individuals have sometimes been noted. [9]
The species is distributed widely from West Asia through the Indian subcontinent and into Southeast Asia. They are resident birds in most parts of their range and do not move large distances. They are found in thin forest and garden land, including those in dense urban areas. [3] Local movements are, however, noted especially in the drier parts of northwestern India and Pakistan where they are said to arrive in large numbers before summer. [10]
The nominate subspecies is distributed in India east of the desert region and south of the Himalayas extending to the west and south of India and Sri Lanka. It mainly inhabits the plains but going up to 2,400 m (7,900 ft) in southern India and up to 1,700 m (5,600 ft) in the Himalayas. The race brevirostris is found in the dry zone from the Arabian Peninsula into Iran, Afghanistan, Pakistan until the dry zone of Rajasthan and Gujarat. These may, however, winter south near Goa. [11] This form has a slight tinge of green in the pectoral yellow tufts. [4] The race intermedius extends from the border of Orissa and Andhra Pradesh [12] northwards into Bangladesh, Myanmar and Indochina.
The movements of the purple sunbird is not well understood. A male ringed in Bharatpur was recovered in Dehra Dun about 350 km (220 mi) to the north. [9]
These birds are very vociferous and will call and will join to mob owls or other predators. The song is rapid rattle followed by ringing, metallic notes. Other call notes include a "chwit" or "chwing!" notes. The primary breeding season is before the Monsoons, April to June in northern India and January to June in Sri Lanka. [3] While feeding they flick their wings. [13] They rarely hover at flowers and usually perch to forage for nectar. They are important pollinators of some plant species such as Butea monosperma , [14] Acacia , [15] Woodfordia [16] [17] and Dendrophthoe . [18] but they sometimes steal nectar by slitting flowers such as Hamelia patens at the base. [19] They are known to feed on small berries such as those of Salvadora persica [20] and cultivated grapes. [21] Insects are sometimes caught by flycatching. [22]
In courtship displays the male raises his head, fans his tail and flutters with partly open wings that expose the pectoral tufts and sings before the female. [9] The nest is a pouch made of cobwebs, thin strips of vegetation, lichens and bark. The entrance hole on the side is often shaded by an overhanging projection. The nest is built almost entirely by the female. The nest material is not woven and most of it is held together by cobwebs. About five to ten days may be taken in the building of the nest. The inner cavity is expanded by the bird by opening its wing and turning around on the inside. [23] In Sri Lanka and in southern India, it sometimes builds its nest by modifying and lining the cobweb structures formed by colonial or 'social' spiders, Stegodyphus sarasinorum (Eresidae). [24] [25] Two eggs are usually laid. [13] [9] The nest is usually suspended from a low branch, often of thorny plants [26] but are sometimes built close to human habitations, attached to wires or other man-made objects [27] [28] and even indoors in an unused toilet. [29] [30] [31] Only the female incubates the eggs which hatch after 15 to 17 days. Males assist in feeding the chicks [32] although females involve themselves to a greater extent, making more trips as the chicks get older. [33]
Sunbirds have been known to live for nearly 22 years in captivity. [34]
Sunbirds and spiderhunters make up the family Nectariniidae of passerine birds. They are small, slender passerines from the Old World, usually with downward-curved bills. Many are brightly coloured, often with iridescent feathers, particularly in the males. Many species also have especially long tail feathers. Their range extends through most of Africa to the Middle East, South Asia, South-east Asia and southern China, to Indonesia, New Guinea and northern Australia. Species diversity is highest in equatorial regions.
The beautiful sunbird, formerly placed in the genus Nectarinia, is a sunbird. It is native to tropical Africa, its range extending from Senegal and Guinea in the west to Sudan, South Sudan, Ethiopia, Tanzania and Kenya in the east.
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The purple-rumped sunbird is a sunbird endemic to the Indian Subcontinent. Like other sunbirds, they are small in size, feeding mainly on nectar but sometimes take insects, particularly when feeding young. They can hover for short durations but usually perch to lap nectar from flowers. They build a hanging pouch nest made up of cobwebs, lichens and plant material. Males are contrastingly coloured but females are olive above and yellow to buff below. Males are easily distinguished from the purple sunbird by the light coloured underside while females can be told apart from males by their whitish throats.
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Loten's sunbird, also known as the long-billed sunbird or maroon-breasted sunbird, is a sunbird endemic to peninsular India and Sri Lanka. Named after Joan Gideon Loten, who was the Dutch governor of colonial Ceylon, it is very similar to the purple sunbird that is found in the same areas and also tends to hover at flowers for nectar, but can be distinguished by the longer bill, the maroon band on the breast and brownish wings. Like other sunbirds, it is also insectivorous and builds characteristic hanging nests.
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The pale-billed flowerpecker or Tickell's flowerpecker is a tiny bird that feeds on nectar and berries, found in India, Sri Lanka, Bangladesh and western Myanmar. The bird is common especially in urban gardens with berry bearing trees. They have a rapid chipping call and the pinkish curved beak separates it from other species in the region.
The Seychelles sunbird is a small passerine from the sunbird family. It is named after the French explorer Jean-Jacques Dussumier. It is native to the Seychelles, where it is known as kolibri in Seychellois Creole. This bird is placed in the genus Cinnyris by some authorities and in Nectarinia by others. Although this bird has a limited range, it is described as common and has a stable population, so the International Union for Conservation of Nature has rated its conservation status as being of "least concern".
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The souimanga sunbird is a small passerine bird of the sunbird family, Nectariniidae. It is native to the islands of the western Indian Ocean where it occurs on Madagascar, the Aldabra Group and the Glorioso Islands.
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