Kākāpō are one of the most endangered birds in the world, currently only surviving on beautiful predator-free islands including Whenua Hou, Pukenui, and Hauturu-O-Toi. They currently only successfully breed and survive with the support of the Department of Conservation’s (DOC) Kākāpō Recovery Programme and Auckland Zoo’s veterinary services. Kākāpō on the southern islands feed their offspring rimu fruit and only breed every 2 – 6 years when these trees are mass fruiting, which is determined by long-term weather patterns.  As such, human impact with introduced predators and global warming both have a huge impact on the survival of kākāpō. 

The kākāpō (Māori: [ˈkaːkaːpɔː];[3] pl.: kākāpō; Strigops habroptilus), sometimes known as the owl-parrot,[4] is a species of large, nocturnal, ground-dwelling parrot of the superfamily Strigopoidea. It is endemic to New Zealand.

Kākāpō can be up to 64 cm (25 in) long. They have a combination of unique traits among parrots: finely blotched yellow–green plumage, a distinct facial disc, owl-like forward-facing eyes with surrounding discs of specially textured feathers, a large grey beak, short legs, large blue feet, relatively short wings and a short tail. It is the world's only flightless parrot, the world's heaviest parrot, and also is nocturnal, herbivorous, visibly sexually dimorphic in body size, has a low basal metabolic rate, and does not have male parental care. It is the only parrot to have a polygynous lek breeding system. It is also possibly one of the world's longest-living birds, with a reported lifespan of up to 100 years.[6] Adult males weigh around 1.5–3 kilograms (3.3–6.6 lb); the equivalent figure for females is 0.950–1.6 kilograms (2.09–3.53 lb).