セグロアジサシ

islands of Atlantic and marginal seas: Senegal (erratic) and Gulf of Guinea; South Atlantic Ocean to Ascension and St. Helena (tropical se Atlantic Ocean); Gulf of Mexico and Caribbean

islands of Indian Ocean region and subtropical w North Pacific: Red Sea, Gulf of Aden, Somalia to Kenya, Europa (w of s Madagascar, Mozambique Channel), Cosmoledo (e Aldabra group, sw Seychelles), Amirantes and smaller Inner Is. (c, ne Seychelles), nw, n, e Madagascar, Mascarenes, Chagos Arch. (nc Indian Ocean), Lakshadweep (w of c India), Vengurla Rocks (off s Maharashtra, wc India) and Greater Sundas (Indian Ocean) to Ryukyu Is. (s Japan) and islets in far w Philippines

islands of tropical and subtropical South Indian and South Pacific oceans: w, n Australia, Torres Strait is., Tench (St. Matthias group, nc Bismarck Arch.), Lord Howe and Norfolk is. (far e of Australia), Kermadec Is. (ne of North I., New Zealand) and the South Pacific to Easter Is. (=Eastern Is. group, se Polynesia)

islands of subtropical and tropical North Pacific: Bonin Is. (=Ogasawara Is., se of Japan) to the Hawaiian Is. s to Kiritimati (Line Is.)

islands of subtropical e Pacific: from Rocas Alijos (w of s Baja California), Revillagigedo, Clipperton, and Tres Marias (w of c Mexico), del Coco (far w of Costa Rica), Los Frailes de Sur (off s Panama), Malpelo (far w of Colombia) and Darwin (nw Galápagos)

islands of subtropical e South Pacific: Salas y Gómez and Desventuradas (far w of n Chile)