Antipodes Island mouse-free for first time since 1800s

It's being described as one of the most complex island eradications ever undertaken but Antipodes Island is now mice-free for the first time since rodents found their way there in the 1800s. The Department of Conservation has just finished a $4 million project that started in 2014 to rid the island of its 200,000-strong mice population. A team has just returned from sub-Antarctic Island after days of searching for any signs of the pests. The project's manager is Stephen Horn. He talks to Susie Ferguson.