Before 1995 we talked about three species: the Great Spotted Kiwi, the Little Spotted Kiwi, and the Brown Kiwi – and we thought the Brown Kiwi was divided into three varieties: North Island Brown, South Island Brown, and Stewart Island Brown.
Then we thought there were four species of kiwi: the Great Spotted Kiwi, the Little Spotted Kiwi, the Brown Kiwi and the Tokoeka – and that the Brown Kiwi and Tokoeka each contained two varieties.
Now we know that's wrong too - the kiwi species tally is five.
So What has Changed?
Brown Kiwi live in the North Island, while Rowi live at Okarito, on the West Coast of the South Island
Tokoeka carry the Ngai Tahu name for kiwi, meaning "weka with a walking stick". The four varieties are named for the places they live.