Kiwi are flightless nocturnal birds highly vulnerable to introduced mammalian predators. Conservation programs directly protect individual kiwi welfare.
Kiwi conservation involves direct welfare interventions including egg removal, captive chick rearing, and release — each with welfare implications for individual birds. Egg removal and artificial incubation prevents the predation that kills 94% of unprotected kiwi chicks before adulthood. The captive rearing period involves handling stress but produces birds large enough to survive some predator encounters when released. Aerial 1080 predator control — highly controversial in New Zealand — dramatically reduces stoat populations, the primary kiwi predator. The welfare trade-off of poison operations that kill individual predators must be weighed against the population-level protection provided to kiwi. The restoration of predator-free islands and fenced mainland sanctuaries provides the most welfare-positive long-term solution by removing the predators that threaten kiwi welfare without ongoing poison operations.