Grey squirrels are an invasive species that suppress red squirrel populations and damage woodland. Welfare-conscious management approaches minimize individual suffering while protecting native species.
Grey squirrel management welfare involves the ethical tension between individual grey squirrel welfare and the conservation and welfare of red squirrels. Lethal control causes individual welfare harm that must be justified against the conservation and welfare benefit to native red squirrel populations. The development of fertility control offers the prospect of population management with substantially lower welfare costs.