18.5 - 21.0 cm. Eyes dark brown; area around the eye white discontinuous. Area between the bill and eyes dark. White spot on forehead, above the base of the bill. Flight feathers of wings and tail black. White band at base of outer flight feathers of the tail (basal half of tail looks white below). Males and females are different. Male: Head, crest, nape, back, rump and feathers that cover uppertail blue-gray. Throat and chest gray, flanks ochre-yellow becoming bright yellow on undertail; belly whitish. Female: Head and crest grayish; nape, back and rump dusky vinaceous, becoming grey on feathers that cover uppertail. Throat, chest and flanks dull vinaceous, feathers that cover undertail yellow; belly whitish. Juveniles are similar to female but belly washed yellow, quickly attains adult-like plumage.