Stoats are very destructive to small farm animals and local wildlife, especially in habitats where they are considered invasive.

How do stoats affect the ecosystem?

Their impact on threatened and endangered species is of particular concern, especially nesting birds and chicks. Stoats are extremely agile climbers and have a devastating effect on native birds by preying on adult and young birds and raiding nests for eggs.

Why are stoats so bad?

“Stoats are widely regarded as the most significant predator of a number of New Zealand's most threatened and endangered native bird species,” she explains. “Stoat control will have to be ongoing if some endemic species, such as kiwi and kaka, are to survive on the mainland.”