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Norway Rat Rodent Library - Identify Norway Rat Damage - Victor Norway Rat Control

NORWAY RAT

Other Names: Brown Rat, Gray Rat, Common Rat, House Rat, Wharf Rat, Water Rat, Barn Rat, Sewer Rat, Super Rat

These "super rats" can reach 16" in length. Each female rat can give birth to 20 pups in her lifetime. Some factors affecting rat populations in cities include continuously mild winters, weather-related disasters, and encroachment of their habitats by new urban development.

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Description | Reproduction | Diet | Habitat

Description of the Norway Rat
Scientific Name:	Rattus Norvegicus
Color:	Usually grayish-brown, but color varies from a pure gray to a reddish brown; hard to identify by color alone
Weight:	10-16 ounces; larger than Roof Rat
Length:	7-10 inches
Tail Length:	6-8 inches; shorter than the body
Body:	Heavy & thick body, blunt nose
Ears:	Relatively small; close to body
Eyes:	Large & protruding black eyes
Lifespan:	5 to 12 months
Droppings:	¾ inch long with blunt ends; dark color; found in groupings
[back to top] Reproduction of the Norway Rat
Litter Size:	8-12 pups per litter
No. of Litters:	4-7 per year
Sexual Maturity:	2-3 months
Gestation Period:	22 days
Breeding Season:	Indoors: All year; Outdoors: Spring & Fall
[back to top] Diet of the Norway Rat
Daily Amount:	0.5-1 ounce
Daily Water:	1-2 ounce
Daily Food:	Cereal grains, meats, seeds, cockroaches, fruits, shrimp
[back to top] Habitat of the Norway Rat
Geography:	Throughout the US and Canada
Nest Location:	Burrows in soil, sewers, basements, lower portion of buildings
Home Range:	25-100 ft. from nest
Active Periods:	Nocturnal; most feeding occurs 30 minutes after sunset and before sunrise
[back to top] Share \| Victor®, the industry leader in rodent control, offers a variety of innovative rat control solutions such as electronic rat traps , ultrasonic rat repellents and rodenticides to help you with all your rodent control needs. Victor® has all the information you need to get rid of the rat in your home.