Breeds islands of tropical Atlantic, from Fernando de Noronha (off Brazil), coastal islands off southeastern Brazil, Boatswain Bird Island (Ascension group, South Atlantic Ocean), Cape Verde Islands, Alcatraz Island (off Guinea), and Gulf of Guinea islands, and islands in Caribbean (including peripheral ones).
plotus
plotus (Forster's)
Breeds on islands in the Red Sea, tropical Indian Ocean, Gulf of Carpentaria (northern Australia), and tropical western and central Pacific Ocean, from Somalia and Socotra southward through Malagasy region, northward to southern Japan, and eastward to Hawaii and Gambier Islands (Tuamotus).
