Seeing live or dead rodents on your property is a sure sign of rodent activity in your home. Also look for droppings, gnaw marks, gnawed fruit in trees, and scratching sounds at night. Look for gnaw marks on door corners, walls, and baseboards. Rat droppings are shiny black and ½ to ¾” long, and mice droppings are smaller with pointed ends. Spotting burrows outdoors along foundations, walls or trees is a sign of Norway rat activity. Learn more