Caliechthrus leucolophus Müller, S, 1840

Adult black, white stripe down crown, undertails coverts barred white, tail tipped white; iris dark brown, bill black, feet dark grey. Juvenile black, barred white below, plumage softer. Voice: Loud, mournful repetitive song of 3 or 4 descending whistles, each series higher in pitch and more insistent. Also a call of 3- 4 clear notes on same pitch, a ringing and laughing “cuo- cuo- cuo- cuo”, and a single burry downslurred “whurr”.