Appearance and Size Facts
- Norway rats are brownish and scattered black in color, but have a whitish gray underbelly
- Their nose is blunt and their ears are small
- The Norway rat's tail is scaly, semi-naked, and shorter than the head and body combined
- Fur is shaggy
- Size: Ranging from 13 to 18 inches in length (including tail), and weighing up to 16 ounces
- Lives in close association with people
Behavior and Habitat of Norway Rats
Norway rats will eat nearly any type of food, but they prefer high-quality foods such as meat and fresh grains. Contrary to mice, rats need a free-standing water source in order to survive, as they do not get the moisture needed from their food source alone. Norway rats have a keen sense of taste, hearing, and smell, but have bad eyesight. Norway rats live in close association with people. They burrow to make nests under buildings and other structures, beneath concrete slabs, around ponds, in garbage dumps, and at other locations where suitable food, water, and shelter are present. Although they can climb, Norway rats tend to inhabit the lower floors of multi-story buildings, as well as sewers.
Signs of Infestation of Norway Rats
Outdoor burrows surrounding the building may be an indication of Norway rat nesting. Look for gnaw marks on food and objects, rub marks or grease stains, and droppings.
Tips for Prevention of Norway Rats
Seal any holes on the outside of the home that are larger than 1/2" with silicone caulk, cement, wire mesh, steel wool, or foam, and eliminate sources of moisture, especially in crawl spaces.
Norway Rat Gallery
Latest Pest & Termite Control News
Subterranean Termite Control in West Palm Beach: Sentricon Colony Elimination
Mar 09, 2023—Florida Termites
Here in Palm Beach County and our northern neighbors in the Treasure Coast, including subterranean termite prevention and control as a part of your general home maintenance plan is essential. This is especially true in West Palm Beach, which was named in the “Top 10 Worst Termite...Read More ›
New Year Pest Control Resolutions for Your South Florida Home
Dec 19, 2022—Rodents, Pest Control, Rodents
A new year means new pests are trying to call your South Florida house their home. This year, along with new year’s resolutions to improve your health, finances, attitude, and whatever other things you want to change in your life, make this year the year you keep your South Florida home...Read More ›
Expert Advice on Protecting Your Home and Lawn from Pests this Winter
Dec 08, 2022—Florida Lawn Care
Living in South Florida means rodents, ants, and other pests don't take the winters off! Meanwhile, your lawn needs less watering and mowing during the winter months and is susceptible to various diseases such as brown patch fungus. Your lawn in winter While we’re outdoors, let’s talk...Read More ›