Northern fulmar

Northern fulmar
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Procellariiformes
Family: Procellariidae
Genus: Fulmarus
Species: F. glacialis
Binomial name
Fulmaris glacialis
(Linnaeus, 1761)

Fulmarus glacialis glacialis
(Linnaeus, 1761)
Fulmarus glacialis auduboni
Fulmarus glacialis rodgersii

Range of F. glacialis
     Breeding range     Wintering range
Bird Sound

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 uniformly gray. Though similar in appearance to gulls, fulmars are in fact members of the Procellariidae family, which include petrels and shearwaters. It and the southern fulmar (Fulmarus glacialodes) together comprise the only extant species in the genus Fulmarus.

The northern fulmar and its sister, the southern fulmar, are the extant members of the genus Fulmarus. The fulmars are in turn a member of the order Procellariiformes, and they all share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns; however, nostrils on albatrosses are on the sides of the bill, as opposed to the rest of the order, including fulmars, which have nostrils on top of the upper bill. The bills of Procellariiformes are also unique in that they are split into between seven and nine horny plates. One of these plates makes up the hooked portion of the upper bill, called the . They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This can be sprayed out of their mouths as a defense against predators and as an energy rich food source for chicks and for the adults during their long flights. It will mat the plumage of avian predators, and can lead to their death. Finally, they also have a salt gland that is situated above the nasal passage that helps desalinate their bodies, due to the high amount of ocean water that they imbibe. It excretes a high saline solution from their nose.

The northern fulmar was first described as Fulmarus glacialis by Carl Linnaeus, in 1761, based on a specimen from within the Arctic Circle, on Spitsbergen.


    The northern fulmar consists of three sub-species:


    Fulmarus glacialis can be broken down to the Old Norse word full meaning "foul" and mar meaning "gull". "Foul-gull" is in reference to its stomach oil and also its superficial similarity to seagulls. Finally, glacialis is Latin for "glacial" because of its extreme northern range.


    Bird Sound

    The northern fulmar has a wingspan of 102 to 112 cm (40–44 in) and is 46 cm (18 in) in length. Body mass can range from 450 to 1,000 g (16 to 35 oz). These species are gray and white with a pale yellow, thick, bill and bluish legs; however there is both a light morph and dark morph. In the Pacific Ocean there is an intermediate morph as well. All morphs have certain similarities, such as only the dark morph has more than dark edges on the underneath, and they all have pale inner primaries on the top of the wings. The Pacific morph has a darker tail than the Atlantic morph.

    Like other petrels, their walking ability is limited, but they are strong fliers, with a stiff wing action quite unlike the gulls. They look bull-necked compared to gulls, and have short stubby bills. They are long-lived, with a lifespan of 31 years not uncommon.

    Population and trends
    Location Breeding population Winter population Breeding trend
    Faroe Islands 600,000 pairs 500,000–3,000,000 individuals stable
    Greenland 120,000–200,000 pairs 10,000–100,000 individuals stable
    France 1,300–1,350 pairs 100–500 individuals increasing
    Germany 102 pairs increasing
    Iceland 1,000,000–2,000,000 pairs 1,000,000—5,000,000 individuals decreasing
    Ireland 33,000 pairs increasing
    Denmark 2 pair 200–300 individuals increasing
    Norway 7,000–8,000 pairs increasing
    Svalbard 500,000–1,000,000 pairs increasing
    Russia (Europe) 1,000–2,500 pairs
    United Kingdom 506,000 pairs
    Canada, Russia (Asia), & US 2,600,000–4,200,000 pairs
    Total (adult individuals) 15,000,000–30,000,000 increasing



    This fulmar will feed on shrimp, fish, squid, plankton, jellyfish, and carrion, as well as refuse. When eating fish, they will dive up to several feet deep to retrieve their prey.


    Egg, Collection Museum Wiesbaden
    Nesting in Shetland, Scotland
    Nests in County Mayo, Ireland
    A fulmar flying in Kongsfjord, Ny Alesund, Svalbard

    The northern fulmar starts breeding at between six and twelve years old. It is monogamous, and forms long term pair bonds. It returns to the same nest site year after year. The breeding season starts in May; however, the female has glands that store sperm to allow weeks to pass between copulation and the laying of the egg. Their nest is a scrape on a grassy ledge or a saucer of vegetation on the ground, lined with softer material. The birds nest in large colonies Recently, they have started nesting on rooftops and buildings. Both sexes are involved in the nest building process. A single white egg, 61 mm (2.40 in) in size, is incubated for a period of 50 to 54 days, by both sexes. The altricial chick is brooded for 2 weeks and fully fledges after 70 to 75 days. Again, both sexes are involved. During this period, the parents are nocturnal, and will not even be active on well-lit nights.

    Social behavior

    The mating ritual of this fulmar consists of the female resting on a ledge and the male landing with his bill open and his head back. He commences to wave his head side to side and up and down while calling.

    They make grunting and chuckling sounds while eating and guttural calls during the breeding season.


    The northern fulmar is estimated to have between 15,000,000 and 30,000,000 mature individuals, that occupy an occurrence range of 28,400,000 km2 (11,000,000 sq mi) and their North American population is on the rise, hence it is listed with the IUCN as Least Concern. The range of these species increased greatly last century due to the availability of fish offal from commercial fleets, but may contract because of less food from this source and climatic change. The population increase has been especially notable in the British Isles.



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    External links

    • BirdLife species factsheet for Fulmarus glacialis
    • Fulmarus glacialis on Avibase
    • Northern fulmar videos, photos, and sounds at the Internet Bird Collection
    • Northern fulmar photo gallery at VIREO (Drexel University)
    • Audio recordings of Northern fulmar on Xeno-canto.