Distribution / Range
Occurs on remote islands in the south Atlantic, such as Tristan da Cunha, as well as Australia and New Zealand. North Atlantic colonies also exist on the Cape Verde Islands, Canary Islands and Savage Islands. Vagrants occurred in France, Great Britain and The Netherlands.
Measures 19–21 cm in length, has a wingspan of 41–44 cm.
Back and rump are pale brown to grey. White face with black eye mask. Black flight feathers. Plumage below whitish.