The Northern Bobwhite, Virginia Quail or (in its home range) Bobwhite Quail (Colinus virginianus) is a ground-dwelling bird native to the United States, Mexico, and the Caribbean. It is a member of the group of species known as New World quails (Odontophoridae). They were initially placed with the Old World quails in the pheasant family (Phasianidae), but are not particularly closely related. The name “bobwhite” derives from its characteristic whistling call. Despite its secretive nature, the northern bobwhite is one of the most familiar quails in eastern North America because it is frequently the only quail in its range. There are 22 subspecies of northern bobwhite, and many of the birds are hunted extensively as game birds. One subspecies, the Masked Bobwhite (Colinus virginianus ridgewayi), is listed as endangered with wild populations located in Sonora, Mexico and a reintroduced population in Buenos Aires National Wildlife Refuge in Southern Arizona.