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Letter-winged kite
The letter-winged kite (''Elanus scriptus'') is a small, rare and irruptive Australian raptor with a core range in central Australia. The adult is a small and graceful, predominantly pale grey and white, bird with black shoulders and red eyes. It is similar in appearance to the black-shouldered kite except for a very distinctive black underwing pattern of a shallow ‘M’ shape, seen when in flight. Roosting during the day in well-foliaged trees and hunting at night, it is the world's only fully nocturnal Accipitriformes or Falconiformes raptor. Like all the elanid kites, it is a specialist predator of rodents, which it hunts by hovering in mid-air above grasslands and fields.
==Taxonomy==
The letter-winged kite was originally described by ornithologist John Gould in 1842. Its specific name is from the Latin word ''scriptum'' meaning "written" or "marked". It is one of four species of small predominantly white-plumaged raptors in the genus ''Elanus''. A taxonomic proposal based on DNA studies has recommended classifying these kites as a separate family (Elanidae). A 2004 molecular study of cytochrome-''b'' DNA sequences shows them to have split off from typical hawks and eagles at an earlier date than the Osprey, which has been classically classified in its own family.
In Central Australia, southwest of Alice Springs, the Pitjantjatjara term for the letter-winged kite is ''nyanyitjira''.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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