Deer Mice

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A close-up image of a small black mouse with a pink nose and ears, on a soft, light brown surface. The background is blurred, highlighting the mouse's curious gaze.

What do Deer Mice Look Like?

Deer mice are relatively small, measuring about 5 to 8 inches in length, including their tail. They typically have brownish-gray to reddish-brown fur on their back and sides. Their undersides are typically white or cream-colored. They have relatively large, prominent, and dark-colored eyes, with large rounded ears, pointed snouts, and a long, hairless, bi-colored tail.

When are Deer Mice Active?

Deer mice are primarily nocturnal creatures, which means they are most active during the nighttime hours. They tend to forage for food, explore their surroundings, and engage in various activities during the dark hours of the night.

What Attracts Deer Mice?

Deer mice are attracted to factors that cater to their survival needs. They seek out accessible food sources, including seeds, grains, and insects. Additionally, they are drawn to sheltered and warm nesting sites such as cluttered storage areas, garages, and concealed spaces. While they can survive with minimal water, they may be enticed by locations with available moisture. In outdoor environments, they prefer areas with dense vegetation. To mitigate the chance of infestation, maintain good sanitation, seal entry points, and eliminate potential food and water sources.

Where do you find Deer Mice?

Outdoors:

  • Fields: Deer mice are frequently found in open fields and grassy areas.
  • Wooded Areas: They inhabit forests, wooded regions, and areas with ample ground cover.
  • Under Rocks and Logs: Deer mice seek refuge under natural coverings like rocks, fallen logs, and tree stumps.
  • Nest in Vegetation: Tall grasses, shrubs, and underbrush provide suitable nesting spots.
  • Gaps and Holes in the Ground: They may burrow into the soil, creating tunnels and nesting sites.


  • Indoors:
  • Basements or Attics: Deer mice often seek shelter in the concealed and undisturbed areas of homes, such as basements and attics.
  • Crawl Spaces: They may access crawl spaces under houses or other structures.
  • Storage Areas: Cluttered storage spaces provide nesting and hiding opportunities.
  • Hidden Nooks: Any undisturbed or rarely accessed areas within structures can be appealing to deer mice as nesting sites.
  • Are Deer Mice Dangerous or Destructive?

    Deer mice are generally not destructive to property, but they do carry health risks. They are known hantavirus carriers, and contact with their excrement or nesting materials can lead to Hantavirus Pulmonary Syndrome (HPS), a severe respiratory illness. Their presence can also result in the spread of diseases and allergies, and if threatened, they may bite, potentially causing infections.

    While they may not cause property damage like some rodents, it’s vital to exercise caution when dealing with deer mice or their habitats due to the associated health risks. Proper hygiene and preventive measures are essential in minimizing the dangers posed by these rodents.

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