Hedgehog populations in the UK have declined severely and monitoring programmes are essential to track trends and evaluate conservation interventions. Understanding how hedgehogs are monitored helps interpret population data and support conservation.
Population monitoring welfare considerations focus on minimising disturbance and handling stress during data collection. Footprint tunnels and camera traps are non-invasive and widely preferred. Radio telemetry requires initial capture for tag fitting but provides uniquely valuable movement data that informs habitat management. The welfare cost of monitoring (minimal when well conducted) is justified by the conservation benefit of detecting and responding to population change. Citizens can contribute to hedgehog welfare at a population level through recording and habitat improvement simultaneously.