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Malagasy kestrel
The Malagasy kestrel (''Falco newtoni''), also known as the Madagascar kestrel, Malagasy spotted kestrel, Newton's kestrel, Madagascar spotted kestrel, ''katiti'' (Creole)〔Erritzoe, Johannes & Erritzoe, Helga (1993): The Birds of CITES and How to Identify Them. Lutterworth Press. ISBN 0-7188-2895-X〕 or ''hitsikitsika'' (Malagasy), is a small bird of prey of the genus Falco. It is named after British ornithologist Edward Newton. It occurs in two subspecies on Madagascar and at Aldabra. The race from Aldabra is also called Aldabra kestrel (''Falco newtoni aldabranus''). Its closest living relative is the Seychelles kestrel; they were at one time considered conspecific. Their common ancestors appear to have diverged very recently, probably less than 1 million years ago during the Early or Middle Pleistocene.
The Mauritius kestrel is more distantly related.(Groombridge ''et al.'' 2002)
==Description==
It can reach a size of 30 cm. The wings are 180 mm to 195 mm at the males and 188 mm to 203 mm at the females. The males can reach a weight between 112 and 118 grams. The weight of the females is up to 128 grams. The head and the nape of the males is rufous grey with dark streaks. A dark moustachial streak running from the basis of the bill backwards to sides of the throat. The upperparts and the wingcoverts are chestnut with black spots. The uppertail coverts are grey with blackish spots. The long flight feathers are blackish brown, the inner webs are covered with white and chestnut spots. The underparts are whitish. The short flight feathers are chestnut coloured and dark banded. The chest, belly and underwing coverts are covered with black spots. The tail is grey coloured. It has six to seven narrow black bars and a broad subterminal bar. All feathers have white tips. In addition there is a rufous phase. At this morph the head and nape are almost black. Body and underwing coverts are dark chestnut brown with black streaks and spots. The throat exhibits a buffish-white hue. The underwing coverts are greyish white and spotted black. The head of the females is stronger chestnut coloured. The underparts are more spotted and the tail is brown with black bars. Both sexes exhibits a slate grey bill with a black tip. The cere is yellow. The legs are either yellow or bright orange (rufous morph). The juveniles are similar coloured as the females.
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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