Restricted to Chatham Is, to Seast of New Zealand.
 
Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 1,100 (2010) and decreasing.
Status EN
Fishing activities, including being shot and caught in craypots, predation by introduced mammals, are the main threats.
For more information see BirdLife International Species Factsheet.
Food
Primarily small fish, supplemented by marine invertebrates.