Order: Procellariiformes
Family: Hydrobatidae - Northern Storm Petrels (2025 update)

EnglishScientificRange
European Storm PetrelHydrobates pelagicus
Hydrobates pelagicus pelagicusbreeds northeastern Atlantic islets from southern Iceland and Faroe Islands northward to central Norway and southward to northern Spain and Canary Islands; ranges to waters off western and southern Africa
Hydrobates pelagicus melitensisbreeds islets of Mediterranean Sea and Tyrrhenian, Adriatic, and Aegean seas; ranges near breeding areas
Fork-tailed Storm PetrelHydrobates furcatus
Hydrobates furcatus furcatusnorthern Kuril, Komandorskiye, and Aleutian islands
Hydrobates furcatus plumbeusislands off southern Alaska to northern California
Cape Verde Storm PetrelHydrobates jabejabebreeds in winter on Cape Verde Islands; present all year around Cape Verde Islands, and extent of at-sea range unknown, possibly to eastern North America
Band-rumped Storm PetrelHydrobates castrobreeds in Atlantic Ocean on Macaronesian and Berlengas islands of western Atlantic, islets near St. Helena and Ascension islands, in Pacific off central Japan, Kauai, and the Galapagos; ranges in Atlantic to Gulf Stream, Gulf of Mexico, western Africa and Gulf of Guinea, in North Pacific, seas off Japan, near main Hawaiian Islands, and coasts of southern Central America to northwestern South America and westward to Marquesas
Monteiro's Storm PetrelHydrobates monteiroibreeds in summer on Azores; present Azores mainly April-August, and extent of at-sea range unknown, possibly to eastern North America
Black Storm PetrelHydrobates melaniabreeds islands off California and Baja California, including Gulf of California, from Channel Islands southward to Islas de San Benito (off central Baja California); ranges coastal waters northward to central California and southward to northern Peru
Markham's Storm PetrelHydrobates markhamibreeds off Paracas Peninsula (southern Peru) and Atacama Desert to mountains 50 km inland between Arica and Iquique (northern Chile); ranges east-central Pacific to coasts of southern Mexico, Galápagos, and central Chile
Least Storm PetrelHydrobates microsomabreeds Islas San Benito (central Baja California) and islands in Gulf of California; ranges coastal waters from southern California to Ecuador
Wedge-rumped Storm PetrelHydrobates tethys
Hydrobates tethys tethysGalapagos (Pitt, Genovesa and Redonda)
Hydrobates tethys kelsallibreeds scattered islands off central Peru to northern Chile
Ringed Storm PetrelHydrobates hornbyibreeds Atacama Desert, mostly in mountains well inland (northern Chile); ranges Humboldt Current of southern Ecuador to north-central Chile
Ashy Storm PetrelHydrobates homochroabreeds islands off California and northern Baja California, from Mendocino County (northwestern California) patchily southward to Isla Todos Santos (northwestern Baja California); ranges coastal California Current to northern California (including Monterey Bay) and north-central Baja California
Tristram's Storm PetrelHydrobates tristramibreeds Izu, Bonin, and formerly Volcano Islands (southern Japan), and Northwestern Hawaiian Islands; ranges eastern coastal waters of Japan and eastward to Kauai (Hawaii)
Swinhoe's Storm PetrelHydrobates monorhisbreeds mainly islands off Japan, also islets off southeastern Russia, Korean Peninsula, eastern China, and Taiwan; ranges through eastern Indonesian Archipelago to southern India and Sri Lanka, Arabian Sea, and off northeastern African coast; recent records from Atlantic Ocean and Mediterranean
Matsudaira's Storm PetrelHydrobates matsudairaebreeds Volcano Islands (far southern Japan); disperses westward to Arabian Sea, Seychelles, and off eastern African coast, eastward to western Micronesia, seas of eastern Indonesia, and off northwestern Australia
Guadalupe Storm PetrelHydrobates macrodactylusformerly bred Guadalupe Island (Mexico); probably extinct, last reported 1912
Townsend's Storm PetrelHydrobates socorroensissummer breeder on islets off Guadalupe Island (western Mexico); ranges in eastern Pacific north to southern California and southward to ca. 10°N
Ainley's Storm PetrelHydrobates cheimomnesteswinter breeder on islets off Guadalupe Island (western Mexico); nonbreeding range poorly known, but apparently disperses southward in eastern Pacific, at least as far as the Galapagos
Leach's Storm PetrelHydrobates leucorhous
Hydrobates leucorhous leucorhousbreeds northeastern Atlantic from islets south of Iceland, Faroes, off Norway, and off Ireland and Scotland, in northwestern Pacific from Kuril Islands southward to Hokkaido (northern Japan), eastward to Aleutian Islands, and patchily southward to central California, and islands of northwestern Atlantic coast from Labrador (southeastern Canada) to Cape Cod area (Massachusetts, northeastern USA); ranges to tropical Pacific Ocean mainly north of Tropic of Capricorn, and tropical Atlantic
Hydrobates leucorhous chapmanibreeds Coronado and San Benito islands (northwestern Mexico); ranges to southern California and Pacific coastal waters of northern South America