Deer mice are small mice, no more than five to eight inches long, and they are found most commonly in outdoor areas, such as farming areas, sheds, and homes that are not regularly lived in such as cabins or vacation homes. In the warmer months they can nest in sheltered outdoor areas such as hollowed out logs, or piles of debris. They feed mostly at night on insects, seeds, berries, nuts, and any small fruits they can find.
Deer mice can very easily get inside a home just like any other mice. They can squeeze through holes as small as a coin so it is very important to check the weather stripping around doors and especially garage doors. The deer mice are also known carries of Hantavirus so it is very important to deal with their droppings and carcasses with gloves and breathing protection.