House mice are typically commensal, and are found in a very wide range of man-made habitats including houses, farm outbuildings, other types of buildings, and even coal mines and frozen meat stores. Sometimes it is feral in areas where it has been introduced, and in some parts of its native range it maintains wild populations in outdoor habitats such as arable land, pastures, coastal sand dunes, salt marshes, and scrubby road verges (Macholán 1999, Wilson and Reeder 2005). House mice tend not to be found in forests and deserts (Macholán 1999).