White-footed Mouse (Peromyscus leucopus) is a rodent native to North America. It ranges from the Ontario, Quebec, Labrador and the Maritime Provinces (excluding island of Newfoundland) to the southwest USA and Mexico. It is also known as the Woodmouse, particularly in Texas.
Adults are 90-100 millimetres (3.5-3.9 in) in length, not counting the tail, which can add another 63-97 millimetres (2.5-3.8 in). A young adult weighs 20-30 grams (0.7-1.1 oz). While their maximum life span is 96 months, the mean life expectancy for the species is 45.5 months for females and 47.5 for males. In northern climates the average life expectancy is 12-24 months.
This species is similar to Peromyscus maniculatus, the Deer Mouse. Like the deer mouse, it may carry hantaviruses, which cause severe illness in humans.
It has also been found to be a competent reservoir for the Lyme disease causing spirochete, Borrelia burgdorferi.