Wild Hedgehog Hibernation Welfare

Hedgehog hibernation is a complex physiological process - disruption causes significant welfare harm and increases winter mortality.

Key Facts

Hedgehogs enter hibernation from October to April depending on temperature and food availability
Core body temperature drops to near ambient during hibernation conserving energy
Mild winters cause hedgehogs to wake periodically depleting fat reserves prematurely
Hedgehogs need at least 450-600g body weight to survive hibernation successfully
Juveniles born late in the year often lack sufficient fat reserves and need supplementary support
Disruption of hibernation sites by garden clearance causes significant welfare harm and increased mortality

Welfare Considerations

Hibernation disruption is one of the most common causes of winter hedgehog mortality in UK gardens. Bonfires built on hedgehog hibernation sites, garden clearance, and disturbance of log piles all destroy shelter and can kill hibernating animals directly. Checking sites before disturbance is the most important welfare action.

What You Can Do

Check bonfire piles for hibernating hedgehogs before lighting - build on the day instead
Leave log piles, leaf heaps, and compost bins undisturbed through winter
Provide hedgehog houses as hibernation sites in a quiet corner of your garden
Contact a hedgehog rescue if you find a hedgehog active in daylight during winter
Support British Hedgehog Preservation Society campaigns for garden-friendly winter practices