This seabird breeds only on New Zealand’s Bounty Islands. Adults are black with a blue sheen above and white below, and nest in colonies on cliff ledges.
Adults are black with a blue sheen above and white below. Most have white patches on the upper wings; some males also have white back patches. Juveniles are brown above with pale facial skin.
It forages in inshore waters around the islands, sometimes in large flocks, and nests colonially on narrow cliff ledges or in alcoves. Pellet analysis found small fish, squid, snails, and sea urchins.
An extinction-risk assessment has not been added yet.