The body is grayish-brown above and lighter, never white, below. Generally, it is a permanent resident in homes and other buildings.
Wild mice enter dwellings in late summer or fall, spend the winter, and leave in the spring.
All mice are excellent climbers and can be found at all levels of the house from the basement to the attic. Mice can be controlled. Do not stack firewood next to buildings. Keep vegetation around buildings and wood piles trimmed. Remove all trash or rubbish or store it in containers with tight fitting lids.