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Asian koel : ウィキペディア英語版
Asian koel

The Asian koel (''Eudynamys scolopaceus'') is a member of the cuckoo order of birds, the Cuculiformes. It is found in South Asia, China, and Southeast Asia. It forms a superspecies with the closely related black-billed and Pacific koels which are sometimes treated as subspecies. The Asian koel is a brood parasite that lays its eggs in the nests of crows and other hosts, who raise its young. They are unusual among the cuckoos in being largely frugivorous as adults. The name ''koel'' is echoic in origin with several language variants. The bird is a widely used symbol in Indian poetry.〔
== Description ==
The Asian koel is a large, long-tailed, cuckoo measuring and weighing .〔''CRC Handbook of Avian Body Masses'' by John B. Dunning Jr. (ed.). CRC Press (1992), ISBN 978-0-8493-4258-5.〕〔(Asian Koel ). oiseaux-birds.com〕 The male of the nominate race is glossy bluish-black, with a pale greenish grey bill, the iris is crimson, and it has grey legs and feet. The female of the nominate race is brownish on the crown and has rufous streaks on the head. The back, rump and wing coverts are dark brown with white and buff spots. The underparts are whitish, but is heavily striped. The other subspecies differ in colouration and size. The upper plumage of young birds is more like that of the male and they have a black beak.
They are very vocal during the breeding season (March to August in South Asia), with a range of different calls. The familiar song of the male is a repeated ''koo-Ooo''. The female makes a shrill ''kik-kik-kik...'' call. Calls vary across populations.〔
They show a pattern of moult that differs from those of other parasitic cuckoos. The outer primaries show a transilient (alternating) ascending moult (P9-7-5-10-8-6) while the inner primaries are moulted in stepwise descending order (1-2-3-4).(Payne citing Stresemann and Stresemann 1961〔)

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Asian koel」の詳細全文を読む



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