Wildlife

Wild Animal Welfare and UK Dormouse Population 2026

UK hazel dormouse populations showed signs of stabilisation in 2026, with nest box programs and woodland management delivering conservation results.

Key Facts

UK hazel dormouse populations have declined by 70% since 1993 but appear to be stabilising in managed areas
Dormice are strictly nocturnal and hibernate from October to April, requiring undisturbed hibernation sites
Nest box programs provide alternative resting and breeding sites in managed woodlands
Dormice are reliant on a diverse woodland structure for year-round food availability
Genetic analysis shows dormouse populations are increasingly fragmented, limiting gene flow

Welfare Considerations

Dormouse welfare is supported by habitat management and nest box provision. Each undisturbed hibernation site and each occupied nest box represents direct welfare support.

What You Can Do

Support People's Trust for Endangered Species dormouse programs
Advocate for woodland management that maintains structural diversity for dormice
Participate in licensed dormouse nest box monitoring