House Mouse


Actual Size: 5” to 8” long including the tail

Characteristics: Light brown to gray to nearly black. Large ears compared to the body.

Habitat: Outside, they build nests near trees. Inside, they inhabit wall voids, cabinets, and garages.


  • Individuals usually live only about a year.
  • Mice are acrobatic and can jump about a foot straight up from a standing position and can jump down more than six feet without getting hurt.
  • Mice can squeeze through a hole as small as 1/4 inch and can quickly climb straight up an eight-foot wall in less than half a minute.

House Mice in Baton Rouge LA

House mice are likely the most common household rodent problem, especially here in Louisiana. True to their name, house mice are known to inhabit homes because they are dependent on human food and shelter for survival. House mice thrive throughout the year and can be found in homes, commercial buildings, open fields, and agricultural lands. They contaminate food meant for humans and pets as they forage, dropping feces and urine along the way.  House mice cause considerable damage to structures by chewing through walls and transmit pathogens that are linked to dangerous diseases. Their infestations can grow out of hand because house mice reproduce at a rapid rate.

House Mouse Habitat

When house mice infest your home, they will build nests in quiet undisturbed places like wall voids, kitchen cabinets, attics, and garages. Droppings, fresh gnaw marks, and tracks or rub marks indicate areas where mice are active. Nests are made from finely shredded paper or other fibrous material, usually in sheltered locations. House mice have a characteristic musky odor that reveals their presence. Mice are active mostly at night. However, many people see house mice during the daytime if they are experiencing a bad infestation.

House Mouse Behaviors, Threats or Dangers

The house mouse is omnivorous but will mostly feed on grain and cereal. House mice contaminate food and are implicated in the transmission of diseases such as salmonella and bubonic plague. The house mouse can cause significant damage to structures by gnawing and tunneling through walls. Mice have also been implicated in the generation of fires and explosions in homes and buildings. Chewed, exposed wires inside walls can spark, causing interior walls to catch fire.

If you have a house mouse infestation in your Baton Rouge property, contact your local rodent pest control pros as soon as possible.