Trap-neuter-return programs for feral cat colonies represent a contested approach to population management, with welfare implications for both managed cats and wildlife they affect.
Feral cat welfare under TNR involves complex trade-offs between the welfare of individual cats in managed colonies, the welfare of wildlife they predate, and the public health considerations of unmanaged populations. Neutered colony cats show improved welfare from reduced injury and reproductive stress. The conservation case against TNR - that maintained colonies continue predating wildlife - requires honest acknowledgment. Managed TNR programs with population monitoring, health care, and predation mitigation represent the most welfare-considered approach to an intractable problem.