A large seabird with a white body, black wings and tail, and dark skin at the base of the bill; it catches fish and squid over tropical seas.
Adults are white with black wing and tail feathers and dark skin at the base of the bill. Juveniles have brownish heads and backs. Bill and leg colors vary among subspecies.
It nests on the ground of small tropical islands and searches the sea for fish and squid, sometimes plunging from the air to catch prey.
An extinction-risk assessment has not been added yet.