How to Identify Norway Rat Droppings

Finding Rat Poop
The only thing less appealing than running into rats around the house is finding their droppings.

Homeowners commonly notice Norway rat feces around:

  • Along first floor baseboards
  • Basements
  • Crawl spaces

Waste around attics and rafters often belongs to roof rats.

Many homeowners don’t think to identify the type of rat causing an infestation. Any rodent is unwelcome, but differentiating between species can actually help pest control professionals know where to set traps and which behaviors to expect.

One easy way to determine this is the pests’ poop:

  • If droppings are three-fourths of an inch long with rounded ends, they belong to Norway rats.
  • If pellets are one-half inch in length with ends that are pointed, the culprit is a roof rat.
  • If feces are one-fourth inch long with pointed ends, they come from a house mouse.

Diseases Transmitted by Norway Rat Droppings

Filthy Pests
Larger and more aggressive than roof rats, Norway rats also get themselves into more unsanitary places.

This species prefers low elevations, often travelling through germ-ridden sewers and drains before moving into homes. This means their fur and droppings contain many harmful pathogens.

Norway rats are known carriers of:

  • Leptospira
  • Salmonella
  • Plague
  • Rat-bite fever
  • Tularemia

One of the most feared diseases transmitted by Norway rat droppings is hantavirus. Contracted by ingesting or inhaling infected feces, this respiratory disease has a 38 percent mortality rate.

Can Cleaning Up Rat Poop Be Dangerous?

Any contact with rat feces is not recommended. Many cases of hantavirus occur when homeowners try to sweep up dried rodent feces without proper safety precautions.

Fresh Norway rat droppings are typically dark in color but lighten with age. These lighter feces are extremely fragile, crumbling easily and becoming airborne when disturbed.

Norway Rat Prevention and Removal

Norway rat droppings are most likely to be found along the paths these pests travel between their nests and food sources. Unfortunately, these are also the places where traps, bait stations, and other control measures need to be set up.

Call a Professional
Avoid all contact with rat droppings and the health problems they cause by relying on the licensed experts at Western Pest.

Learn more about Western’s comprehensive Home Pest Control Plans.

Call for service: (877) 250-3857