There are three clear signs that you have rodents in your home. Droppings, noises in the walls and runways where the rodents exit and enter the home when looking for food are the most noticeable. The first thing exterminators look for are droppings. Rats are known to leave up to 60 droppings daily, slightly more than a mouse, which leaves about 50 droppings a day. These droppings are found in areas where rodent activity is apparent. A pest control company will come the first day and sweep the area, returning the next day to see how many droppings were left behind over night. This gives an idea of the size of the infestation.
Next are the noises you hear in your walls and floorboards. Rodents do make noise when moving around or gnawing on wood or walls. Pest control professionals will listen for any movement in the walls. They have different methods for doing this, but they can hear any strange noises that can mean that you have a rodent or rodents. Pest management takes time when looking for the infestation and containing it.
If you think you have a rodent problem you should call professional exterminator, but you can try something yourself first. Sprinkle talcum powder or some other powder in areas where you think you have rodents lurking and if they come out at night, you will see their tracks. You will want to use an exterminator to eliminate the rodents and have it done as quickly as possible. Rodents do present a health problem for the occupants if left untreated and allowed to populate within a home.