In March 2018, with the release of the final Environmental Impact Statement, the NPS formally proposed to relocate 20 to 30 wolves to the island over a three-year time period, starting immediately. An official Record of Decision was released on 7 June 2018 selecting this preferred alternative over several others including taking no action, introducing wolves over a longer 20-year period, and delaying immediate action but allowing for the possibility of future action after the continued monitoring of moose population metrics. As of June 2018, the NPS is actively developing specific implementation strategies. By the end of 2018, three females and a male were trapped in Minnesota and relocated to the park, with more to come. Over the following months the newly introduced male wolf died and one of the females left the island via an ice bridge. In early 2019 eleven more wolves were trapped in Canada and released in the park.