I have only seen taxidermied Kākāpō in museums, but they are quite impressive giant green flightless parrots. To get an idea of the size, here are chicks with a DoC worker:

https://en.wikipedia.org/wiki/K%C4%81k%C4%81p%C5%8D#/media/F...

Of course I can't not mention our other more famous green parrot, the Kea, who are best known for dismantling cars in their spare time.

https://en.wikipedia.org/wiki/Kea

https://en.wikipedia.org/wiki/Kea#/media/File:Nestor_notabil...