Previously placed in genus Sula. Monotypic.
Breeding confined to Christmas I, in E Indian Ocean; dispersal and foraging over long distances, but very little information available and at-sea distribution poorly known. Formerly bred on several islands in W Indian Ocean; fossil remains found in Solomon Is, W Pacific; a female at Rota (Northern Mariana Is) in mid-Apr 2007 represents the first documented record of this species in WC Pacific Ocean#R; recorded also in Banda Sea and Chagos Archipelago.
Food and feeding
Status and conservation
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