One of only two native bird species not afforded any level of protection under the Wildlife Act, they are predators and scavengers.
Feral cats live in the wild and are not stray or owned. Black stilt, wrybill and black-fronted terns are greatly impacted by cat predation in braided riverbeds.
Hedgehogs are a major predator on eggs of riverbed breeding birds such as banded dotterel and black-fronted tern and kill and eat chicks of many ground-nesting birds.
Mice are a key food source for stoats and feral cats in the New Zealand bush. When conditions are right and there is plenty of food, their numbers increase rapidly.
They are a major threat to our environment and are widespread in New Zealand. Their own predators do not have much effect on controlling possum numbers.
Three species of rats live in New Zealand. All of them are introduced pests and threaten the long-term survival of native species.
Stoats are devastating for New Zealand birds. They are voracious and relentless hunters, said to have only two reasons for living – to eat and reproduce.
The cost to bait all the river traps
The cost to maintain accurate predator data
The cost to complete an annual bird count on the rivers
The cost to check and reload all the river traps
The cost to check and reload one river trap for a year
The cost to check and reload ten river traps for a year