Of the five species in the New Zealand parrot family Strigopidae, the Norfolk Island Kākā

Norfolk Island Kaka

| name = Norfolk Kaka| image = Nestor productus.jpg| image_width = 250px| image_caption = Specimen in La Specola| status = EX | status_system = IUCN3.1| extinct = 1851?| regnum = Animalia| phylum = Chordata| classis = Aves| ordo = Psittaciformes...

 and Chatham Island Kākā

Chatham Island Kaka

The Chatham Kaka, or Chatham Island Kākā is an undescribed parrot species previously found on the Chatham Islands, New Zealand. The first individuals were thought to belong to the Kākā , but detailed examination of the subfossil bones showed that they actually belong to a separate endemic species...

 went extinct in recent history. The last known individual of the Norfolk Island Kākā died in its cage in London sometime after 1851, and only between seven and 20 skins survive. The Chatham Island Kākā went extinct in pre-European times, after Polynesians

Polynesians

The Polynesian peoples is a grouping of various ethnic groups that speak Polynesian languages, a branch of the Oceanic languages within the Austronesian languages, and inhabit Polynesia. They number approximately 1,500,000 people...

 settled the island, between 1550 and 1700, and is only known from subfossil

Subfossil

Subfossil refers to remains whose fossilization process is not complete, either for lack of time or because the conditions in which they were buried were not optimal for fossilization....

 bones. Of the surviving species, the Kākāpō is critically endangered, with only living individuals. The mainland Kākā

Kaka

The New Zealand Kaka, also known as Kākā, is a New Zealand parrot endemic to the native forests of New Zealand.-Description:...

 is listed as endangered, and the Kea

Kea

The Kea is a large species of parrot found in forested and alpine regions of the South Island of New Zealand. About long, it is mostly olive-green with a brilliant orange under its wings and has a large narrow curved grey-brown upper beak. The Kea is the world's only alpine parrot...

 is listed as vulnerable.

Nestorini

There are two surviving species and at least one well documented extinct species of the Nestorini tribe. Very little is known about the Chatham Island Kākā, and it may have been con-specific with another Kaka species, or a separate species belonging to the genus.

Strigopini

The Kākāpō is the only member of the Strigopini tribe.