The Habitat of the House Mouse
House mice live in and around homes, farms, and commercial establishments, as well as in open fields and agricultural lands. The onset of cold weather each fall in temperate regions is said to cause mice to move into structures in search of shelter and food.
Damage Caused By Rats
Rats consume and contaminate foodstuffs and animal feed. They also damage containers and packaging materials in which foods and feed are stored. Norway and roof rats can cause complications by gnawing on electrical wires and wooden structures (doors, ledges, or walls) and tearing up insulation in walls and ceilings for nesting.
Norway rats may undermine building foundations and slabs with their burrowing activities. They may also gnaw on all types of materials, including soft metals such as copper and lead as well as plastic and wood. If roof rats are living in the attic of a residence, they can cause considerable damage with their gnawing and nest-building activities.
Among the diseases that rats may transmit to humans or livestock are murine typhus, leptospirosis, trichinosis, salmonella (food poisoning), and rat bite fever. Plague is a disease that can be carried by both roof and Norway rats, but in California, it is more commonly associated with ground squirrels, chipmunks, and native wood rats.