Northern Fulmar vs Fulmar Prion

Fulmarus glacialis compared with Pachyptila crassirostris

Side-by-Side Comparison

Attribute Northern Fulmar Fulmar Prion
Scientific Name Fulmarus glacialis Pachyptila crassirostris
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Least Concern Least Concern
Length 47.0 cm (18.5 in) —
Wingspan 107.0 cm (42.1 in) 36.4 cm (14.3 in)
Weight 750.0 g (26.46 oz) 142.83333333333334 g (5.04 oz)
Diet Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. --
Clutch Size 1 1
Population Trend — —

Size Comparison

Body Length
Northern Fulmar 47.0 cm
Fulmar Prion —
Wingspan
Northern Fulmar 107.0 cm
Fulmar Prion 36.4 cm
Weight
Northern Fulmar 750.0 g
Fulmar Prion 142.83333333333334 g

Habitat Comparison

Shared Habitats

None

Northern Fulmar only

None

Fulmar Prion only

Northern Fulmar

Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.

Song & Call Comparison

Northern Fulmar

Song

A nasal, cackling 'kak-kak-kak-kak' or grunting 'uh-uh-uh' at the nest and colony. Less melodic than petrels. In flight gives occasional single nasal calls.

Fulmar Prion

Geographic Range & Migration

Northern Fulmar

North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.

Fulmar Prion

Conservation Status

Least Concern

Northern Fulmar

Least Concern

Fulmar Prion

How to Tell Them Apart

Northern Fulmar

Bill

Yellowish hooked bill with prominent tubular nostrils on top

Fulmar Prion

About These Birds

Northern Fulmar

The northern fulmar is a long-lived seabird that can survive over 40 years. It defends its nest by projectile-vomiting a foul-smelling stomach oil at intruders, which can mat the feathers of predators and cause fatal loss of waterproofing. Fulmars have expanded their breeding range dramatically southward over the past two centuries.

Fulmar Prion

26–28 cm. Intermediate-sized prion with a thick, fulmar-like bill; pale grey above with dark wing pattern. Breeds Bounty, Snares, and Heard islands. Resembles Broad-billed but has heavier bill base. Feeds on crustaceans; overlaps broadly with other prions at sea.

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