The prions are small widespread pelagic seabirds, of the genus Pachyptila. Species that breed in the New Zealand region include the fairy prion (Pachyptila turtur), the broad-billed prion (Pachyptila vittata), the Antarctic prion (Pachyptila desolata), and the fulmar prion (Pachyptila crassirostris). These species have all been observed as bycatch in New Zealand fisheries.