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The purple-rumped sunbird is a common resident breeder in southern India, Sri Lanka and Bangladesh.It is found in Gujarat to the west [4] (possibly a recent expansion [5]) and extending into Assam (Hailakandi [6]) or Meghalaya [2] in the east.
Sunbird drinking nectar from typical bird-pollinated flower As nectar is a primary food source for sunbirds, they are important pollinators in African ecosystems. Sunbird-pollinated flowers are typically long, tubular, and red-to-orange in colour, showing convergent evolution with many hummingbird -pollinated flowers in the Americas. [ 10 ]
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.
It was formerly considered to be conspecific with seven other species: the ornate sunbird, Palawan sunbird, Sahul sunbird, Tukangbesi sunbird, Flores Sea sunbird, South Moluccan sunbird and the Mamberamo sunbird. It is a small, brightly coloured bird with olive-green plumage on the wings and back with a bright yellow chest.
Mrs. Gould's sunbird is a small sunbird. It has a down-curved and pointed beak, typical for a nectar feeder. The iris of the eye is usually deep brown, and the tarsus is black. The male Mrs. Gould's sunbird is bright and colourful. The forehead to crown, supercilium and throat of the sunbird are deep violet.
The ornate sunbird was formally described in 1827 by the French naturalist René Lesson under the binomial name Cinnyris ornatus. [1] He based his description on a hand-coloured plate showing the male and female birds that had been published in 1822 as part of a book by the Dutch zoologist Coenraad Jacob Temminck.
The scarlet-chested sunbird is similar to Hunter's sunbird in appearance, with adult males having a characteristic red–scarlet coloured breast and an iridescent green patch on top of its head. The female is dark brown with no supercilium. It inhabits woodland and gardens, at elevations of up to 2,400 metres (7,900 ft). [3]
The female has an olive-green back, yellowish breast and white tips to the outer tail feathers. In most of the range, males have a long green-blue tail, but A.s. nicobarica of the Nicobar Islands and the former subspecies A. vigorsii ( Western crimson sunbird ) of the Western Ghats of India lack the long central tail feathers.