The easiest way to identify a rodent problem is by seeing their droppings. Mice droppings are about the size of rice grains. Rat droppings are about the size of black beans.
Other rodent signs:
- Burrows - digging around foundations, into walls, under sheds and fences (rats).
- Runs - dust-free path along walls and floors (rats and mice).
- Gnaw marks - on wood, concrete or other materials.
- Sightings - mice are more common in the daytime; rats are more active at night.
- Smudge marks - greasy film left by fur along walls or into burrow entrances.