House mice live and thrive under a variety of conditions.
They are found in and around homes and farms as well as in open fields and agricultural lands. House mice consume and contaminate food meant for humans, livestock, or other animals. Droppings, fresh gnawing, and tracks indicate areas where mice are active. Mouse nests, made from fine shredded paper or other fibrous material are often found in sheltered locations. House mice have a characteristic musky odor that identifies their presence.