Reversal of secondary sex characteristics, most notably plumage color and pattern, has been reported in several species of gallinaceous birds, including ring-necked pheasants, Phasianus colchicus, Japanese quail, Coturnix coturnix japonica, and northern bobwhites, Colinus virginianus. There is, however, a paucity of information relating to the reversal of plumage in other Phasianidae. The report is on an adult, female California quail, Callipepla californica, with mixed male and female plumage characteristics that was collected on 7 November 1986 at the E.E. Wilson Wildlife Management Area, 15 km north of Corvallis, Benton County, Oregon.