Hedgehog Habitat Loss and Wildlife Welfare

Western European hedgehog populations have declined by up to 75% since the 1950s. Urban habitat management, garden practices, and road design all directly influence the welfare of surviving hedgehogs.

Key Facts

UK hedgehog populations have fallen from approximately 30 million in 1950 to around 1 million today
Hedgehogs travel up to 2 km nightly searching for food, mates, and suitable nesting sites
Garden fences and walls fragment hedgehog habitat; a 13x13cm gap in fences allows passage
Road casualties kill an estimated 100,000-300,000 UK hedgehogs annually; modified drainage channels reduce this
Slug pellets containing metaldehyde poison hedgehogs directly and eliminate their prey; iron phosphate products are safer
Hedgehog hibernation depends on adequate fat reserves built through autumn feeding; garden food provision helps

Welfare Considerations

Hedgehog welfare at the population level is inseparable from urban and agricultural land management. Individual hedgehogs suffer most from garden hazards including swimming pool drowning, strimmer injuries, netting entanglement, and pesticide poisoning. At the population level, habitat fragmentation is the primary driver of decline. Neighborhood-scale hedgehog highways, created by coordinated fence gaps across multiple gardens, allow the nightly ranging essential for their survival and reproduction. Road mortality is partially addressable through modified drainage gully design that prevents hedgehog entrapment. The interaction of multiple stressors including habitat fragmentation, pesticide use, and intensive land management creates population-level welfare concerns beyond any individual animal.

What You Can Do

Create a 13x13cm hedgehog hole in garden fences to enable nightly ranging
Eliminate pesticide use in gardens, particularly slug pellets, and never use metaldehyde products
Provide supplementary food (cat or dog food, not bread or milk) during summer and autumn
Check bonfires before lighting and check grass before strimming to prevent hedgehog injury