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. It has been the official the state bird of California since 1931. These birds have a curving crest or plume, made of six feathers, that droops forward: black in males and brown for 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.