Hedgehog Road Mortality: Scale and Solutions

How road networks contribute to hedgehog population decline and what infrastructure and behavioral changes can reduce casualties.

Key Facts

An estimated 100,000-300,000 hedgehogs are killed on UK roads annually
Hedgehog populations have declined by one-third in rural areas since 2000
Peak road mortality occurs in May-June when juveniles disperse and in autumn before hibernation
Hedgehog tunnels under roads have been trialed with some success in the Netherlands and UK
Night driving speed reduction has been proposed as a simple measure to reduce mortality

Welfare Considerations

Road-killed hedgehogs represent a visible welfare harm that occurs at enormous scale. The collision itself may not be instantaneous - spinal injuries can leave hedgehogs alive but unable to move for hours. Survey data suggests most roadkill animals are not killed immediately. The scale of road mortality is demographically significant for hedgehog populations - 100,000+ deaths annually in a declining species removes a significant fraction of the breeding population each year. Solutions are available but require infrastructure investment and changed driver behavior that is difficult to mandate.

What You Can Do

Drive slowly on rural roads at night, especially May-June and September-October
Report road-killed hedgehogs to the Great British Hedgehog Survey
Support hedgehog underpass installation in high-mortality road sections
Create garden hedgehog highways through fences to provide off-road movement corridors
Support hedgehog population monitoring programs that track trends and hotspots