Of the eight species of red-crowned parakeet, two are exinct, subflavescens, of Lord Howe Island and erythrotis, of Macquarie Island. The green parrot, cooki, breeds on Norfolk Island and the New Caledonian red-crowned parakeet, saisseti, in New Caledonia.
The other four sub-species are in New Zealand: novaezelandiae breeds on the main islands, many offshore islands and the Auckland Islands; cyanurus breeds on the Kermadec Islands and chathamensis on the Chatham Islands and Reischek’s parakeet, hochstetteri breeds on the Antipodes Islands.