Description

  • Size: adult head and body 2 ¾-4” in length; Tail 2-5″.
  • Weight: About ⅜ – 1 ¼ oz.
  • Pale grayish, buff coloring to reddish brown on top and side. White fur on the belly.
  • The tail is usually bi-colored and is very long, longer than half the length of the body and covered with short hair.

Biology

  • Deer mice usually live between 2-14 months, but some in captivity have been known to live 5-8 years.
  • The female gestation period is usually 21-24 days and females have 3-5 young with each litter. They also have 2-4 litters per year.
  • The young will reach sexual maturity in 7-8 weeks.
Deer-Mouse

Habits

  • Deer mice are nocturnal, coming out at night to find food.
  • They are excellent climbers and will be found in even upper levels of structures like in attics and upper floors.
  • During colder months deer mice will seek shelter inside and will enter buildings during that time.
  • Deer mice are one of the leading carriers of the hantavirus, which can be very dangerous to humans.