Trap-neuter-return programs manage feral cat populations but involve welfare trade-offs that depend heavily on implementation quality and colony conditions.
TNR programs represent a harm-reduction approach that accepts some ongoing welfare costs for feral cats in exchange for population stabilization. Feral cats living outdoors experience disease, injury, and exposure that cause genuine suffering. High-quality TNR programs include colony management, ongoing veterinary care, and aggressive indoor adoption of socialized cats. The alternative of lethal control also involves significant welfare costs.