The UK's semi-wild pony populations - New Forest, Dartmoor, Exmoor, and Welsh Mountain - require active management to maintain welfare while preserving their semi-wild status.
Semi-wild pony welfare involves balancing the welfare benefits of natural living - space, natural behaviour, social freedom - with the welfare risks of limited veterinary access. Injured or ill ponies in open common land may not receive prompt treatment. Parasite burdens without regular worming can become severe. Severe winter weather without adequate natural forage causes starvation. Annual drift round-ups cause acute stress but enable the health monitoring and treatment that prevents chronic welfare failure. The goal is welfare-appropriate semi-wild conditions - not complete freedom, which would cause unmonitored suffering - and not intensive management, which would negate the welfare benefits of natural living.