Hedgehogs were first brought to New Zealand by acclimatisation societies to remind settlers of their homeland. Unfortunately the cute little spiky mammals love to eat eggs and are a major threat to ground nesting species like the endangered New Zealand dotterel.
These predators eat the eggs and young of our native wildlife, often attacking and eating the adults too. Omnivores like rats and possums also compete with native wildlife for food. Lean more about pests.