Feral horse management in North America involves contested approaches to population control, with welfare implications for roundup operations, long-term holding facilities, and fertility control programs.
Wild horse management involves genuine welfare tradeoffs. Helicopter roundups cause acute distress — horses are chased at high speed for extended periods, separated from family bonds, and confined in unfamiliar holding facilities after lives of freedom. Long-term corral holding creates chronic welfare compromise as horses adapted to ranging are confined indefinitely with inadequate space and environmental complexity. Yet allowing populations to grow without management leads to overgrazing, food shortage, and competitive suffering for horses themselves alongside ecosystem damage. Fertility control through PZP vaccination represents the most welfare-positive management approach — it prevents population growth without the acute and chronic welfare harms of roundup and holding. Scaling up fertility control programs requires political will and funding that remain inadequate relative to the welfare benefits available.