Harvest Mouse Conservation and Habitat

Britain smallest rodent is declining due to agricultural intensification and loss of hedgerows and rough grassland habitat.

Key Facts

Harvest mice are Europe only prehensile-tailed rodent, using their tails for climbing
They build tennis ball-sized woven nests in tall vegetation for raising young
Agricultural changes including loss of hedgerows and rough grassland have reduced habitat
Harvest mouse populations have declined significantly in lowland agricultural areas
They are legally protected under the Wildlife and Countryside Act 1981
Rewilding and agri-environment schemes creating rough grassland corridors can help recovery
Captive harvest mouse populations exist in zoos and are used for reintroduction planning

Welfare Considerations

Harvest mouse welfare is closely tied to agricultural landscape change. In suitable habitats they appear to thrive, but agricultural intensification leaves populations isolated and vulnerable. Welfare for individual harvest mice depends primarily on habitat quality - adequate food, shelter and nest sites. Supporting agri-environment schemes and habitat creation makes direct welfare improvements for surviving populations.

What You Can Do

Support agri-environment schemes creating rough grassland and hedgerow habitat
Report harvest mouse sightings and nests to People Trust for Endangered Species
Avoid disturbing or cutting rough grassland and hedgerows during breeding season
Support rewilding initiatives that create suitable harvest mouse corridor habitat