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Falco dickinsoni : ウィキペディア英語版 | Dickinson's kestrel
Dickinson's kestrel (''Falco dickinsoni'') is a bird of prey of southern and eastern Africa belonging to the falcon family Falconidae. It is named after John Dickinson, an English physician and missionary who collected the type specimen. It is also known as the white-rumped kestrel. Its closest relatives are the grey kestrel and banded kestrel and the three are sometimes placed in the subgenus ''Dissodectes''. ==Description== It is a fairly small, stocky kestrel with a large, square head. It is long with a wingspan of and a weight of . The female is about 4% larger and 10-20% heavier than the male. The plumage is mostly dark grey with a pale head and rump. The tail is grey with narrow black bars and a broad subterminal band. The underside of the flight feathers are also barred. The cere and feet are yellow and there is bare yellow skin around the eye. The bill is dark grey and the eyes are brown. Juvenile birds are grey-brown with barred flanks and without the paler head and rump. They have a greenish cere and eye-ring. It is usually silent but has a high-pitched alarm and contact call. At the nest, a soft, mewing call attracts the young for feeding.
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「Dickinson's kestrel」の詳細全文を読む
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