Wildlife

Wild UK Dormouse Hibernation

Conservation and welfare of hazel dormice during the vulnerable hibernation period in UK woodland habitats.

Key Facts

Hazel dormice hibernate from October to May, spending over half their lives in hibernation
Hibernation sites including leaf litter and log piles must be undisturbed for winter survival
Dormice build up fat reserves through autumn foraging that must sustain them through winter
UK dormouse populations have declined by 70% since 1993
Nest box programs and habitat management support dormouse recovery in key areas

Welfare Considerations

Dormouse welfare during hibernation is critically dependent on undisturbed sites with stable temperatures. Disturbance during hibernation forces dormice to rouse, using precious fat reserves and reducing survival probability. Protecting hibernation sites is a direct welfare intervention.

What You Can Do

Leave undisturbed areas of leaf litter and log piles in woodland habitats
Install dormouse nest boxes in suitable hazel coppice or mixed woodland
Support People's Trust for Endangered Species dormouse monitoring programs