Wild Hedgehog Decline: Conservation and Welfare in Agricultural Landscapes

Hedgehog populations have declined dramatically across the UK and Europe. Understanding the drivers of decline and what individuals can do supports both conservation and the welfare of surviving hedgehogs.

Key Facts

UK hedgehog populations have declined by approximately 50% since 2000 and by up to 95% since the 1950s
Agricultural intensification has reduced invertebrate food availability and removed hedgerow nesting habitat
Road mortality kills an estimated 100,000 to 335,000 hedgehogs annually in the UK
Garden hazards including pesticides, strimmers, bonfires, and ponds cause significant mortality
Badger predation is a significant mortality factor where populations overlap, though not a primary driver of decline
Hedgehogs travel up to 2 km per night and require connectivity between garden and countryside habitats
Urban hedgehog populations are holding up better than rural ones in some areas due to garden food sources

Welfare Considerations

Wild hedgehogs suffering from starvation, road injuries, or garden hazards experience significant individual welfare harm alongside the population-level conservation crisis. Hedgehogs caught in garden netting or strimmers suffer severe injuries. Pesticide-treated invertebrates poison foraging hedgehogs through accumulation. Winter orphans and injured hedgehogs arriving at rehabilitation centres represent the visible end of widespread welfare harm. Garden-level actions that create connected habitat, remove hazards, and support invertebrate food chains improve welfare outcomes for individual animals as well as population recovery.

What You Can Do

Create hedgehog highways by cutting 13cm holes in garden fences to allow safe travel between gardens
Stop using slug pellets — methiocarb and metaldehyde variants poison hedgehogs and their invertebrate prey
Check bonfires before lighting and check long grass before strimming during hedgehog activity season
Provide fresh water and supplementary feeding with meat-based wet cat food during dry summers
Support British Hedgehog Preservation Society and People's Trust for Endangered Species hedgehog surveys