If I had the decision to choose how to save the Kakapo I would create a large invisible bullet proof bubble that was as large as Stewart Island.
Entrance inside the "Kakapo Bubble" is only approved by D.O.C (Department of Conservation) and payment of $1000.00 which would go toward the national conservation programme.
When you first enter the "Kakapo Bubble" you must spend 30 minutes washing your shoes and hands etc. to make sure that you don't bring anything into the "Bubble".
Once you have passed the "cleanliness test" you are allowed to walk freely around the Kakapo reserve but you are under constant supervision via a drone to make sure that you don't do anything wrong to endanger the species any further.