Deer populations in Britain and Europe have expanded significantly without natural predators, creating welfare challenges from starvation, vehicle collisions, and culling.
Overpopulated deer face welfare harms from resource competition, malnutrition, and disease. Vehicle collision causes widespread traumatic injury. Current culling practices, when done by experienced marksmen, can be welfare-positive compared to starvation or collision death. However, poor shooting skill results in injured deer dying slowly. The most welfare-positive long-term solution involves reintroducing apex predators to restore natural population dynamics.