Black above; prominent white supercilium and large wing-band; black throat and breast; white below. Female is usually browner where male is black. The black-backed races of White Wagtail M. alba have conspicuous white forehead. Mostly in pairs, though small parties may feed together in winter; a bird of flowing waters, being especially fond of rockstrewn rivers, though it may be seen on ponds and tanks; feeds at edge of water, wagging tail frequently; also rides on the ferry-boats plying rivers.