Compare the droppings of the rodent species found in New Zealand.
Mouse droppings are smaller than those of Norway rats and ship rats and generally smaller than kiore. They have pointed ends. Norway rat droppings are 13.4 mm to 19.1 mm long, ship rat droppings are 6.8 mm to 13.8 mm long, kiore droppings 6.4 mm to 9.0 mm and house mouse droppings are 3.9 mm to 7.6 mm long. Kiore are not often found on the mainland.