Fulmarine petrel

They are the most variable of the four groups within the Procellariidae, differing greatly in size and biology.

They do, however, have a unifying feature, their skull, and in particular their nasal tubes.

They are predominantly found in the Southern Ocean with one species, the northern fulmar, ranging in the North Pacific and Atlantic Oceans.

[1] Fossils of fulmarine petrels dating back to the Upper Miocene have been found in Menorca.

[2] A multigene genetic study published in 2021 provided a genus-level phylogeny of extant genera in the family and showed that the fulmarine patrels make an apparent clade.