Identifying Norway Rats Norway rats are large, bulky rodents nearly synonymous with human habitation. Also known as brown rats or sewer rats, these pests can grow to 15 inches in length from nose to tail. They have stiff, dark gray or brown fur and scaly tails to go with their hairless ears. Their bellies are normally lighter in color, while their tails are usually brown or pink. The Norway rat is larger than most of its rodent cousins and can weigh up to two pounds. Common Issues Associated with Norway Rats Burrowers by nature, Norway rats are usually found in and around trash bins, basements, garages, and cellars. These pests are commonly associated with filth and are known to carry lice and fleas that can spread various diseases. Norway rat infestations also damage property by gnawing on structural beams or causing electrical fires when they chew on wiring. Additionally, their droppings and urine can contaminate food. Successful Control Homeowners with Norway rat problems should call wildlife control experts as soon as possible. Signs of infestation can include finding droppings and grease marks along baseboards or hearing noises in walls and ceilings at night. Trying to trap these pests without professional help can work short-term, but over time, populations will quickly grow out of control. Critter Control specialists have the tools and training to safely and efficiently identify and eliminate Norway rats.