Outdoor cousins of the House Mouse, which tend to move indoors in the winter seeking their creature comforts. The Wood Mouse or Long-Tailed Field Mouse has larger ears, more prominent eyes and a longer tail than the House Mouse and is brownish with a white underside. Fond of apples and stored food.
REMEDY: Use suitably labelled proprietary rodenticide. Block up any obvious holes by which the mouse may enter the house.