The complex welfare ethics of grey squirrel control programs aimed at protecting red squirrels from competitive exclusion and squirrelpox.
Grey squirrel management creates a genuine welfare conflict between the interests of grey squirrels (individual animals that suffer in lethal control) and red squirrels (whose populations face extinction from grey competition and disease). Current lethal control methods including spring traps can cause suffering if not properly set, monitored, and maintained. Shooting requires skill to be immediately lethal. Fertility control through oral bait is under development and represents a potentially more humane long-term approach. The ethical framing requires balancing the welfare of individual grey squirrels against the conservation and welfare of red squirrel populations.