What do Rat Droppings Look Like?
Fresh droppings are moist, soft, shiny and dark, but in a few days become dry and hard. Larger than mouse droppings, roof rats (for one) can produce droppings up to 1/2″ long, spindle shaped and curved, compared to Norway rat droppings which are more blunt in shape. Mouse feces in contrast are about 1/8″ long, pointed on both ends. So in essence, rat poop is oblong, about the size and color of dark raisins (but smooth, not wrinkled).