A robot that fires deadly poison onto feral cats is a new weapon in fight against the predators in Western Australia.
The wild cats kill millions of native creatures and are linked to the extinction of some species. They're a problem here too with controversy recently over a feral cat shoot in Canterbury.
In Western Australia as part of a five year plan to get them under control, the state is about to start using the "felixer" to take them out.
Dr John Read is an ecologist and the founder of the not for profit company that invented the device, he spoke to Lisa Owen.
