Mice setup their nests inside near food sources and prefer areas that are warm. Typical nesting sites include appliances, walls, closets, ceilings, furniture, and in stored items. Droppings will be found in any areas that mice frequently travel.
Mice are very opportunistic feeding on insects, seeds, or any other available foods that can be found outside. When food gets scarce in the winter, some of the mice enter nearby buildings to over-winter.
Mice usually only travel 10-30 ft from their nesting sites to obtain food and water sources.