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California quail
The California quail (''Callipepla californica''), also known as the California valley quail or valley quail, is a small ground-dwelling bird in the New World quail family. These birds have a curving crest or ''plume'', made of six feathers, that droops forward: black in males and brown in females; the flanks are brown with white streaks. Males have a dark brown cap and a black face with a brown back, a grey-blue chest and a light brown belly. Females and immature birds are mainly grey-brown with a light-colored belly.
Their closest relative is Gambel's quail which has a more southerly distribution and, a longer crest at , a brighter head and a scalier appearance. The two species separated about 1–2 million years ago, during the Late Pliocene or Early Pleistocene.〔 It is the state bird of California.
==Taxonomy==
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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