Droppings are dark brown or black and vary in length between 1/8 and 5/16 of an inch (4-8mm) depending on the species.
Mae baw ystlumod yn frown tywyll neu'n ddu ac maent rhwng 1/8 a 5/16 modfedd (4-8mm) o hyd gan ddibynnu ar y rhywogaeth.