Other Signs of Rodents
Urine Odor
Both rats and mice urinate frequently during their daily travels. Research has shown that a mouse is capable of depositing 3,000 droplets in just 24 hours. Rodent urine is often deposited in their runways and other frequented areas.
Rodent odor may be particularly pronounced in larger rodent infestations and may persist for prolonged periods. Also, cats and dogs may excitedly sniff and probe an area where rodents are present.
Sounds
Various sounds produced by rodents and their young such as high-pitched squeaks, gnawing sounds, scratching and digging noises, and sounds of rodents fighting can commonly be heard during night inspections.