The joint Department of Conservation and Ngāi Tai Ki Tāmaki response began when a DOC ranger spotted a rat on the island in late April.

Based on camera footage, only one rat is suspected to be present, although there could potentially be more. Additional tracking tunnels, cameras, and conservation dogs have been deployed, alongside a variety of baits in and around traps.

As the rat (or rats) is avoiding traps, DOC has adopted another strategy of selectively placing the toxic bait brodifacoum in bait stations or discrete locations around the island.

DOC Inner Hauraki Gulf Islands Operations Manager Kat Lane says it is crucial to keep Motutapu pest-free.