The Kākāpō Recovery breeding programme is on track for a bumper season, offering hope for the critically endangered bird's future.
There are only 200 or so Kākāpō in the world.
The nocturnal, flightless parrots are mating and so far at least nine fertile eggs have been produced this season.
Department of Conservation scientist Andrew Digby has been checking the nests overnight, and talks to Sarah Robson.