Being such small animals, their access into buildings is probably easier than for rats, and a greater range of nesting sites is available to them. Typically, within buildings they may nest in wall voids, cupboards, roof voids, stored foods, furniture and many other locations. Out of doors, they live in burrows.
In their general behaviour, mice are much more curious and exploratory than rats. They are very good climbers, jumpers and swimmers, although they do not seem to swim very often. In their feeding habits, mice are generally regarded as being quite omnivorous. A variety of foods are acceptable on baits or traps, depending on the main diet of the resident population. They are well adapted to low water intake and can live on just the moisture in grain without supplementary intake of water. Preferably, though, they seem to enjoy dry cereals if free water is available. Mixing of certain baits with water can increase the attractiveness. Mice feed mostly around dusk and during the night, but if the area is relatively undisturbed, they will feed during the day as well. They seem to prefer to eat small amounts of food at various locations and at frequent intervals. In most cases, mice are lot suspicious of new food (baits) as rats. In rural areas, the occasional combination of mild weather, abundant food and shelter, and a reduction of natural enemies may cause mice to multiply to plague proportions, and then to migrate. Massive migrations can cause very significant damage and losses on farms and inside buildings.