Kiwi are critically threatened by introduced predators in New Zealand. Predator control programs deliver direct welfare benefits to individual kiwi by eliminating the primary causes of mortality and suffering.
Individual kiwi welfare is directly affected by predation risk, with stoat attacks causing traumatic deaths for adult birds and complete destruction of nesting attempts. Chicks that hatch in unmanaged habitat face near-certain predation within weeks of life. The welfare improvement from predator control is dramatic and measurable: in protected areas, chick survival rates increase from 5% to over 50%, and adults live their full potential lifespans rather than being killed by predators within a few years. Operation Nest Egg provides direct welfare benefit to individual eggs and chicks by removing them from predation risk during their most vulnerable period. The Predator Free 2050 vision, if achieved, would eliminate the primary source of welfare harm for kiwi at a landscape scale.