Roe deer are one of the most frequently killed large mammals on UK roads, and road mortality causes acute welfare harm at a scale that merits both individual awareness and infrastructure responses.
Vehicle collisions cause acute trauma to roe deer — broken legs, internal haemorrhage, spinal injuries, and head trauma. Animals that are not killed outright may survive for hours in extreme pain before assistance reaches them. The welfare of deer injured in road collisions is a public awareness issue: many members of the public do not know the appropriate response (secure the road scene safely, contact police and wildlife organisations) and injured deer are sometimes left to suffer unnecessarily. Deer Vehicle Collision Responders — trained volunteers who can humanely dispatch mortally injured deer — provide a direct welfare service at collision scenes. Infrastructure investment in underpasses and crossing structures at known hotspots prevents collisions entirely.