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The grey-breasted partridge (''Arborophila orientalis''), also known as the white-faced hill partridge, or Horsfield's hill partridge, is a species of bird in the Phasianidae family. It is a monotypic species that is endemic to highland forests in eastern Java, Indonesia. Measuring , this species is a stocky, short-legged bird. Its mostly grey plumage is barred on the lower back and tail. It has a black crown and nape, and conspicuous white forehead, cheeks and throat. Bare skin around the eyes is red. The bill is black and the legs are red.〔 Some authorities include the Malaysian, Roll's and Sumatran partridges as subspecies of the grey-breasted partridge. The grey-breasted partridge is threatened by habitat loss. ==References== 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「Grey-breasted partridge」の詳細全文を読む スポンサード リンク
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