What do Norway rats look like?
Norway rats, also called brown rats, are medium to large-sized rodents averaging 16 inches in length including the tail, and weigh an average of about one pound. These rats have coarse brown or grayish brown fur on their upper bodies and a lighter color on their bellies. Unlike roof rats whose tails are longer than their bodies, Norway rats have tails that are shorter than their bodies. They have small ears, relatively small eyes, and a blunt snout.
When are norway rats most active?
How do Norway rats differ from roof rats?
Norway rats are larger than roof rats, with a more heavy-set appearance. As noted above, they have shorter tails and smaller ears. Roof rats have slender bodies, longer tails, and larger ears.