The fulmarine petrels or fulmar-petrels are a distinct group of petrel

Petrel

Petrels are tube-nosed seabirds in the bird order Procellariiformes. The common name does not indicate relationship beyond that point, as "petrels" occur in three of the four families within that group...

s within the procellariidae

Procellariidae

The family Procellariidae is a group of seabirds that comprises the fulmarine petrels, the gadfly petrels, the prions, and the shearwaters. This family is part of the bird order Procellariiformes , which also includes the albatrosses, the storm-petrels, and the diving petrels.The procellariids are...

 family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

. They are the most variable of the four groups within the Procellariidae, differing greatly in size and biology. They do have, however, have a unifying feature, their skull, and in particular their nasal tubes. They are predominantly found in the Southern Ocean

Southern Ocean

The Southern Ocean comprises the southernmost waters of the World Ocean, generally taken to be south of 60°S latitude and encircling Antarctica. It is usually regarded as the fourth-largest of the five principal oceanic divisions...

 with one species, the Northern Fulmar

Fulmar

Fulmars are seabirds of the family Procellariidae. The family consists of two extant species and two that are extinct.-Taxonomy:As members of Procellaridae and then the order Procellariiformes, they share certain traits. First, they have nasal passages that attach to the upper bill called...

, ranging in the North Pacific

Pacific Ocean

The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

 and Atlantic

Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 Oceans.

Species

• Northern Giant Petrel
  Northern Giant Petrel
  The Northern Giant Petrel , also known as the Hall's Giant Petrel, is a large seabird of the southern oceans. Its distribution overlaps broadly with the similar Southern Giant Petrel, though it overall is centered slightly further north.-Taxonomy:The Northern Giant Petrel along with its...
  
  , Macronectes halli
• Southern Giant Petrel
  Southern Giant Petrel
  The Southern Giant Petrel , also known as the Antarctic Giant Petrel, Giant Fulmar, Stinker, and Stinkpot, is a large seabird of the southern oceans. Its distribution overlaps broadly with the similar Northern Giant Petrel, though it overall is centered slightly further south...
  
  , Macronectes giganteus
• Northern Fulmar
  Northern Fulmar
  The Northern Fulmar, Fulmarus glacialis, Fulmar, or Arctic Fulmar is a highly abundant sea bird found primarily in subarctic regions of the north Atlantic and north Pacific oceans. Fulmars come in one of two color morphs: a light one which is almost entirely white, and a dark one which is...
  
  , Fulmarus glacialis
• Southern Fulmar
  Southern Fulmar
  The Southern Fulmar, Fulmarus glacialoides, is a seabird of the Southern Hemisphere. Along with the Northern Fulmar, F. glacialis, it belongs to the fulmar genus Fulmarus in the family Procellariidae, the true petrels...
  
  , Fulmarus glacialoides
• Antarctic Petrel
  Antarctic Petrel
  The Antarctic Petrel is a boldly marked dark brown and white petrel, found in Antarctica, most commonly in the Ross and Weddell seas. They eat Antarctic krill, fish, and small squid...
  
  , Thalassoica antarctica
• Cape Petrel
  Cape Petrel
  The Cape Petrel also called Cape Pigeon or Pintado Petrel, is a common seabird of the Southern Ocean from the family Procellariidae. It is the only member of the genus Daption, and is allied to the fulmarine petrels, and the Giant Petrels. It is also sometimes known as the Cape Fulmar...
  
  , Daption capense
• Snow Petrel
  Snow Petrel
  The Snow Petrel is the only member of the genus Pagodroma. It is one of only three birds that breed exclusively in Antarctica and has been seen at the South Pole. It has the most southerly breeding distribution of any bird.-Taxonomy:...
  
  , Pagodroma nivea