The fulmars are tubenosed seabirds of the family Procellariidae. The family includes two extant species and two extinct fossil species from the Miocene.

Fulmars superficially resemble gulls, but are readily distinguished by their flight on stiff wings, and their tube noses. They breed on cliffs, laying one or rarely two eggs on a ledge of bare rock or on a grassy cliff. Outside the breeding season, they are pelagic, feeding on fish, squid and shrimp in the open ocean. They are long-lived for birds, living for up to 40 years.

Historically, the northern fulmar lived on the Isle of St Kilda, where it was extensively hunted. The species has expanded its breeding range southwards to the coasts of England and northern France.