Hedgehog Road Mortality Welfare | Animal Welfare Hub

Road traffic is one of the leading causes of hedgehog death in Britain, and simple infrastructure and behaviour changes can significantly reduce this preventable welfare harm.

Key Facts

An estimated 100,000-300,000 hedgehogs are killed on UK roads annually
Road mortality is particularly significant because hedgehog populations are already declining steeply
Hedgehogs typically travel 2-3km per night in search of food and mates, crossing multiple roads
They rely on a freeze response to threat rather than fleeing - inappropriate for traffic encounters
Roads with high hedgehog casualty rates can be identified through citizen science monitoring
Wildlife-friendly road design including culverts and tunnels allows safe passage under roads
Speed reduction and traffic calming in suburban areas where hedgehogs forage reduces mortality

Welfare Considerations

Road mortality causes acute traumatic injury in hedgehogs that is frequently not immediately fatal - injured hedgehogs are found surviving in distress on roadsides. The freeze response that made hedgehogs safe from most natural predators is lethal when applied to traffic. The cumulative mortality of tens to hundreds of thousands of hedgehogs annually contributes directly to population decline. Infrastructure interventions - culverts beneath roads, hedgehog-specific tunnels, and road signage - reduce mortality where implemented. At individual level, driving carefully in residential areas at night and slowing when headlights illuminate a hedgehog prevents many individual welfare harms.

What You Can Do

Drive carefully on suburban and rural roads at night when hedgehogs are most active
Report hedgehog road casualties to the Big Hedgehog Map citizen science project
Support campaigns for wildlife-friendly road design in planning consultations
Advocate for speed reduction in residential areas as a hedgehog welfare measure
If you find an injured hedgehog, contact a wildlife rehabilitator rather than leaving it