Head and body length 6-10 cm.
Tail length 6-10 cm.
Weight 12-22 g.
The House Mouse has grey-brown fur, large pink ears, and a hairless tail which is as long as its head and body. Compared to similar mice, it has a narrower head and small eyes.
The female House Mouse has 5 to 10 litters of 4 to 8 pups in a year, and may produce up to 40 young in a lifetime. Mainly a nocturnal creature, but it can also be active during the day. It can climb and swim fairly well, and lives in family groups. To make its nests in buildings it chews paper or the like, and in natural habitats it lives in a small burrow in the soil. Not only cats predate on house mice, but also barn owls, stoats, weasels and rats. They are killed by severe cold in the winter, and are trapped and killed as pests. Its sense of sight is poor, but its senses of smell, touch, taste and hearing are acute. It does not hibernate, and is seen all year round. It can live for up to 18 months.
It feeds on grain and fruit, insects and other invertebrates. It will also scavenge for food waste left by humans, or from scattered bird seed dropped from garden feeders.
Found in association with human occupation, such as houses, food stores, farm buildings, rubbish tips, sheds and outbuildings, shops, factories, warehouses, gardens, open fields and hedgerows. Originally from Asia, it was introduced to Britain via trading during the Iron Age. Abundant and widespread throughout.
Recorded and accepted via iRecord.