A staggering 170,000 animal pests have been removed from eastern Northland in the last four years by projects involved in the Kiwi Coast initiative.
Kiwi Coast co-ordinator Ngaire Tyson said the tally - more than 800 a week on average - only applied to trapping, not the thousands of other pests killed by poison.
In 2016 alone, 56,455 animal pests were trapped along Northland's eastern coast.
The initiative to link predator control networks continues to grow, with more than 80 associated groups and individuals now pest trapping over 125,217ha of Northland, Ms Tyson said. The Kiwi Coast is New Zealand's largest pest control project.
Kiwi populations have more than doubled at a number of sites on the Kiwi Coast, bucking the national trend identified by the Kiwis for Kiwi Trust of a decline in the population of two per cent per year.