The Wu-T'ou Weng, or Black-Headed Weng, as it name suggests, can be distinguished from the White-Headed Weng by its black head plumage, while the feathers in front of its eyes, behind its ears and on its chin are white. Its two cheeks have marks that form a V-like shape, and under its chin is a speckled mark in orange- yellow or red.
白頭翁頭部白色，眼先（眼睛至上嘴間條紋面）、耳覆羽、顏為黑色，耳羽下方有一似「胎記」的白斑；烏頭翁顧名思義，與白頭翁大唱反調，頭上羽毛以黑色出現，眼先、耳覆羽、顏則為白色，兩腮還長著狀似八字的鬍鬚，下頷基部則有一個橘黃或紅色斑點。