Breeds and disperses widely in tropical Pacific Ocean, from Ryukyu and other islands of far southern Japan southward to New Caledonia, eastward to Hawaii and Easter Island, and Salas y Gomez; presumably this race, Islas Revillagigedos (off Mexico).
roseotinctus
Breeds southwestern Pacific islands, from Great Barrier Reef, Lord Howe and Norfolk islands (east of Australia), and Kermadec Islands (north of New Zealand).
rubricauda
Breeds islands in western Indian Ocean from Europa (Mozambique Channel), Aldabra and Aride (Seychelles), Nosy Ve (southwestern Madagascar), and the Mascarenes.
westralis
Breeds islands in eastern Indian Ocean, from Cocos (Keeling) and Christmas Island (east-central Indian Ocean), Rowley Shoals, Ashmore Reef, and Sugarloaf Rock (off Australia); also (presumably this race) Gunungapi and Manuk (Banda Sea).
