List of birds in Aequornithes

This list serves as a reference to the number of species in Pelecanimorphae.

Gaviidae
1 genus, 5 species
 * Gavia - Loons or divers
 * Red-throated Loon or Red-throated Diver, Gavia stellata
 * Black-throated Loon, Arctic Loon, or Black-throated Diver, Gavia arctica
 * Pacific Loon or Pacific Diver, Gavia pacifica (formerly in G. arctica)
 * Great Northern Loon, Common Loon, or Great Northern Diver, Gavia immer
 * Yellow-billed Loon or White-billed Diver, Gavia adamsii

Spheniscidae
6 genera, 19 species
 * Aptenodytes – Great penguins
 * King Penguin, Aptenodytes patagonicus
 * Emperor Penguin, Aptenodytes forsteri


 * Pygoscelis – Brush-tailed penguins
 * Adélie Penguin, Pygoscelis adeliae
 * Chinstrap Penguin, Pygoscelis antarctica
 * Gentoo Penguin, Pygoscelis papua


 * Eudyptula – Little penguins
 * Blue Penguin, Eudyptula minor
 * Little Penguin, Eudyptula novaehollandiae


 * Spheniscus – Banded penguins
 * Magellanic Penguin, Spheniscus magellanicus
 * Humboldt Penguin, Spheniscus humboldti
 * Galapagos Penguin, Spheniscus mendiculus
 * African Penguin, Spheniscus demersus


 * Megadyptes
 * Yellow-eyed Penguin, Megadyptes antipodes


 * Eudyptes – Crested penguins
 * Fiordland Penguin, Eudyptes pachyrynchus
 * Snares Penguin, Eudyptes robustus
 * Erect-crested Penguin, Eudyptes sclateri
 * Southern Rockhopper Penguin, Eudyptes chrysocome
 * Northern Rockhopper Penguin, Eudyptes moseleyi
 * Royal Penguin, Eudyptes schlegeli (disputed)
 * Macaroni Penguin, Eudyptes chrysolophus

Oceanitidae
5 genera, 8 species
 * Oceanites
 * Wilson's Storm Petrel, Oceanites oceanicus
 * Elliot's Storm Petrel, Oceanites gracilis


 * Nesofregatta
 * Polynesian Storm Petrel, Nesofregetta fuliginosa


 * Garrodia
 * Grey-backed Storm Petrel, Garrodia nereis


 * Pelagodroma
 * White-faced Storm Petrel, Pelagodroma marina


 * Fregata
 * Black-bellied Storm Petrel or Gould's Storm-Petrel, Fregetta tropica
 * White-bellied Storm Petrel, Fregetta grallaria
 * New Zealand Storm Petrel, Fregatta maorianus

Diomedeidae
4 genera, 21 species
 * North Pacific albatrosses (Phoebastria)
 * Waved Albatross Phoebastria irrorata
 * Short-tailed Albatross Phoebastria albatrus
 * Laysan Albatross Phoebastria immutabilis
 * Black-footed Albatross Phoebastria nigripes


 * Great albatrosses (Diomedea)
 * Northern Royal Albatross Diomedea sanfordi
 * Southern Royal Albatross Diomedea epomophora
 * Tristan Albatross Diomedea dabbenena
 * Antipodean Albatross Diomedea antipodensis
 * Amsterdam Albatross Diomedea amsterdamensis
 * Wandering Albatross  Diomedea exulans


 * Sooty albatrosses (Phoebetria)
 * Sooty Albatross Phoebetria fusca
 * Light-mantled Albatross Phoebetria palpebrata.


 * Mollymawks (Thalassarche)
 * Atlantic Yellow-nosed Albatross T. chlororhynchos
 * Indian Yellow-nosed Albatross T. (chlororhynchos) carteri
 * Grey-headed Albatross T. chrysostoma
 * Black-browed Albatross T. melanophris 
 * Campbell Albatross T. (melanophris) impavida
 * Buller's Albatross T. bulleri
 * Shy Albatross T. cauta
 * White-capped Albatross T. steadi
 * Chatham Albatross T. (cauta) eremita
 * Salvin's Albatross T. (cauta) salvini

Hydrobatidae
4 genera, 17 species
 * Thalobata
 * Cape Verde Storm Petrel Thalobata jabejabe
 * “Pacific Storm-Petrel”, Thalobata cryptoleucura
 * Monteiro's Storm Petrel, Thalobata monteiroi
 * Band-rumped Storm Petrel, Thalobata castro


 * European Storm Petrel Hydrobates pelagicus
 * Leach's Storm Petrel Oceanodroma leucorhoa
 * Matsudaira's Storm Petrel Oceanodroma matsudairae
 * Least Storm Petrel, Oceanodroma microsoma
 * Wedge-rumped Storm Petrel, Oceanodroma tethys
 * Swinhoe's Storm Petrel, Oceanodroma monorhis
 * Guadalupe Storm Petrel, Oceanodroma macrodactyla (extinct)
 * Tristram's Storm Petrel, Oceanodroma tristrami
 * Markham's Storm Petrel, Oceanodroma markhami
 * Black Storm Petrel, Oceanodroma melania
 * Ashy Storm Petrel, Oceanodroma homochroa
 * Hornby's Storm Petrel, Oceanodroma hornbyi
 * Fork-tailed Storm Petrel, Oceanodroma furcata