Wild hedgehog populations have declined dramatically in Britain and Europe, with suburban garden management playing a significant role in their welfare.
Wild hedgehog welfare is a case where individual household decisions aggregate to population-level welfare impact. A single garden boundary fence is a minor inconvenience; a suburban street with impermeable gardens fragments hedgehog movement corridors that once connected grassland to grassland. The welfare solution is collective: hedgehog highway movements, where neighbours coordinate fence gaps to create permeable corridors, restore the ranging freedom that hedgehogs need for breeding, foraging, and hibernation site finding. Chemical-free slug control protects individual hedgehogs from secondary poisoning. The suburban hedgehog crisis is one where informed consumer behaviour and neighbour coordination can produce measurable wildlife welfare improvement.