Here are some ways to tell if you have a rat or mouse infestation in your home:
Droppings are gross, but they are the easiest way to identify whether you have a rodent problem. New droppings are dark and moist, whereas, older rat or mouse droppings dry out and turn gray. Droppings will usually be found near food, but also show up in the areas where rodents are traveling. Check for droppings in drawers and cupboards, under the sink, and along all possible travel areas. This could be anywhere in your home, even in the walls.
2. Teeth Marks
Small gnawing marks on packages of food indicate a rodent problem. To determine whether the problem is current, regularly check food bags and boxes for these bite marks. If marks appear on new items, it is likely that you have an ongoing infestation.
3. That Bad Smell
When rodents live in your home, they multiply rapidly and leave a lot of fecal material behind. Pets can sometimes be found clawing at areas where they smell rodents, so pay attention to their behavior. Their sense of smell is far more sensitive than ours. If an infestation is large, you may notice a stale smell coming from hidden areas of your home.
4. Tracks Along Common Travel Areas
Check for patterns along crevices, corners, and runways where rodents are likely to travel. If you pick up a flashlight and see smudge marks, footprints, urine stains, or droppings, you have a rodent problem.
If you pull out a drawer or the dishwasher and find a nest, then you have a rodent problem. These nests will be made of fabric or dry plant material. If you find a nest, then you have an infestation in your home.