Wild Kiwi Conservation and Stoat Predation

New Zealand kiwi face catastrophic predation from introduced stoats and other mammalian predators, with predator control operations having direct welfare implications for all species involved.

Key Facts

Kiwi are flightless nocturnal birds endemic to New Zealand and national icons
Without intervention, 95% of kiwi chicks die before reaching breeding age due to predator pressure
Stoat population explosions following beech tree masting events cause kiwi population crashes
1080 (sodium fluoroacetate) aerial drops are the primary tool for large-scale stoat control
Kiwi eggs are incubated in Operation Nest Egg programmes until chicks are predator-safe size

Welfare Considerations

Stoats killing kiwi chicks cause traumatic deaths in a species that has evolved without mammalian predators. Kiwi taken by stoats frequently experience prolonged injury before death. Predator control using 1080 poison causes deaths in target species and non-target animals including dogs that access poison bait stations. The welfare costs of predator control are real but weighed against the welfare and conservation benefit of kiwi protection. Development of more humane control technologies is an active research area.

What You Can Do

Support New Zealand predator control programmes that protect kiwi from stoat predation
Donate to Operation Nest Egg and other kiwi chick protection initiatives
Keep dogs away from areas with active 1080 operations to prevent accidental poisoning
Support research into more humane and specific predator control technologies
Raise awareness about the conservation and welfare complexity of island predator management