The feathers of adult males are mostly black, with white primaries and a white tail. However, the tail of one subspecies is buff. Females and young males are greyish-brown and white. The head and neck of both male and female ostriches is nearly bare, with a thin layer of down.[8][9] The skin of the female's neck and thighs is pinkish gray,[9] while the male's is blue-gray, gray or pink dependent on subspecies.