The serious first step to getting rid of mice and rats is to find their runways and feeding areas for proper placements of rodent traps and rodent baits. They are active in dusk so using a flashlight would be handy to see into corners and recessed areas. Look for tracks, feces, gnawing damage, urine stains, grease stains and live or dead rodents. If you have a pet their will certainly let you know. To get rid of rodents you need to know if it is a mouse or a rat. Rats are just a lot bigger animal, leaving 3/8” – ½” feces and rat’s head will be comparably larger to its body than a mouse’s , look for the round ears on mice.