The New Zealand government has announced a “world-first” project to make the nation predator free by 2050.

The prime minister, John Key, said on Monday it would undertake a radical pest extermination programme – which if successful would be a global first – aiming to wipe out the introduced species of rats, stoats and possums nation-wide in a mere 34 years.

According to the government, introduced species kill 25m native New Zealand birds a year including the iconic ground-dwelling, flightless Kiwi, which die at a rate of 20 a week, and now number fewer than 70,000.

The government estimates the cost of introduced species to the New Zealand economy and primary sector to be NZ$3.3bn (£1.76bn) a year.

Source: No more rats: New Zealand to exterminate all introduced predators | World news | The Guardian