Key information
This tiny rodent has greyish fur, large ears, a pointed snout and a long, scaly tail. Apart from humans, it is probably the most common mammal in the UK.
It is a nocturnal creature and is often considered a pest, as it spoils food and carries disease. Mice are quite aggressive towards each other and fights are frequent.
They construct a system of tunnels to live in, which may be quite simple or more complex with several chambers and exits. Females are able to produce up to 10 litters in a year, each with between four to eight young. Within three weeks of birth, the young mice are independent.
The wood mouse Apodemus sylvaticus appears rather similar, but has more orange-brown fur and large, protruding eyes. This mouse is common in woods, hedgerows and scrub. It is a good climber and is often found in trees. It also enters houses in search of food.
What they eat:
Grain, seeds, roots, fungi and insects. Inside the house they seem to eat almost anything!
Measurements:
- Length:
- Up to 10cm, tail up to 10cm
- Weight:
- Up to 20g
