A team of helicopter-based hunters in Canterbury were able to locate and destroy 18 pest wallabies in the space of a week.
Their method: GPS collaring just a handful of the wild wallabies which would then lead the hunters to larger groups.
It's all part of a nationwide programme to cull wallabies, which can cause havoc on fragile ecosystems.
Gavin Udy is the project delivery specialist for national programmes at the Otago Regional Council and he joins Emile Donovan.
Dama wallaby corpses have been discovered at two locations in the Pakuratahi Forest and near Kaitoke Regional Park, prompting fears the pest species may be establishing itself in the area. Photo: Department of Conservation
