Additionally the roof rat typically has a much longer tail.
Roof rat vs norway rat.
Roof rats can weigh between 8 12 ounces and norway rats can weight between 10 17 ounces.
Adult roof rats measure about eight inches in length while norway rats can be up to ten inches long.
People refer to rats by many names brown rat vs.
Tail shorter than.
The most common home invading rodents norway rats and roof rats can be identified in several ways.
These rats are also vectors of diseases including plague jaundice rat bite fever cowpox virus trichinosis and salmonellosis.
Another way to differentiate between the two rodents is size.
Even if no droppings are visible or there has been no actual sighting of rats there can be other indicators that you have an infestation of them.
Norway rats also called sewer rats brown rats and wharf rats are much larger and darker in color which ranges from a grayish brown to reddish brown.
Distinguishing norway rats from roof rats.
Because norway rats tend to be larger their droppings are also larger about 3 4 inch long whereas roof rat droppings are usually about half an inch.
Roof rats have black fur with pale underbellies while norway rats have brownish gray coats.
Norway rats prefer a diet rich in carbohydrates and proteins.
From head to tail roof rats can be between 13 17 inches long and norway rats can be about 12 17 inches long.
While roof rats excel scaling your roof norway rats are powerful swimmers.
Oregon pest control rats roof rat norway rat.
Norway rats can cause damage to structures through their gnawing and eating.
Roof rats are excellent climbers while norway rats are excellent swimmers.
In addition norway rats can contaminate food and introduce fleas into a home.
With an average weight of 4 11 ounces the roof rat is much smaller than the norway rat.
Norway rats can also weigh over one pound which is twice as heavy as a roof rat.
Black rat for example without realizing that many describe the same two species.
Color is an easy way to identify roof rats vs.
Roof rats will be more commonly found in your attic while norway rats on the ground level.
About seven to ten inches long.
Livestock feed fresh fruits and vegetables meat sugar flower bulbs corn flour wheat beans bread even injured rats may be eaten.
Norway rats tend to look more well fed and rounder than roof rats with small eyes close set ears and a shorter tail.
Also called the black rat ship rat or old english rat the roof rat measures 6 8 inches long and has a tail that s slightly longer than its body.
