Hedgehog population monitoring relies heavily on citizen science, with volunteers providing crucial data that informs conservation and welfare interventions at landscape scale.
Hedgehog population monitoring serves welfare purposes beyond simple conservation counting: understanding where hedgehogs are, what habitats they use, and why numbers are declining enables targeted welfare interventions that reduce suffering at population scale. Camera trap data from citizen science networks has revealed unexpected patterns - hedgehogs using gardens far more intensively than rural habitats in some areas, crossing roads at specific hotspots, and preferring certain habitat features for daytime refugia. This data directly informs practical welfare interventions including road underpass placement, garden connectivity campaigns, and local authority guidance on land management. The Hedgehog Street programme's garden-linking campaign is grounded in monitoring data showing hedgehog territory sizes and movement needs. Citizen science participants gain welfare awareness that extends beyond monitoring: volunteers who install camera traps typically become active advocates for hedgehog-friendly garden management. The connection between citizen monitoring and welfare intervention represents a model for translating population-level data into individual animal welfare improvements.