Flesh-footed Shearwater vs Northern Fulmar

Ardenna carneipes compared with Fulmarus glacialis

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Side-by-Side Comparison

Attribute Flesh-footed Shearwater Northern Fulmar
Scientific Name Ardenna carneipes Fulmarus glacialis
Order Procellariiformes Procellariiformes
Family Procellariidae Procellariidae
Conservation Status Near Threatened Least Concern
Length 47.0 cm (18.5 in)
Wingspan 62.0 cm (24.4 in) 107.0 cm (42.1 in)
Weight 649.0 g (22.89 oz) 750.0 g (26.46 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
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Size Comparison

Body Length
Flesh-footed Shearwater
Northern Fulmar 47.0 cm
Wingspan
Flesh-footed Shearwater 62.0 cm
Northern Fulmar 107.0 cm
Weight
Flesh-footed Shearwater 649.0 g
Northern Fulmar 750.0 g
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Habitat Comparison

Shared Habitats

None

Flesh-footed Shearwater only

Northern Fulmar only

None

Northern Fulmar

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

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Song & Call Comparison

Flesh-footed Shearwater

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.

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Geographic Range & Migration

Flesh-footed Shearwater

Northern Fulmar

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

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Conservation Status

Near Threatened

Flesh-footed Shearwater

Least Concern

Northern Fulmar

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How to Tell Them Apart

Flesh-footed Shearwater

Northern Fulmar

Plumage

Light morph: white head and underparts with grey wings and back. Dark morph: entirely grey. Tube-nosed bill and stiff-winged flight distinctive at sea.

Bill

Yellowish hooked bill with prominent tubular nostrils on top

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About These Birds

Flesh-footed Shearwater

41–45 cm, wingspan 99–107 cm. All-dark sooty-brown with pale flesh-coloured feet and yellowish bill base. Breeds southern Indian Ocean islands and SW Australia; ranges to North Pacific. Near Threatened; bycatch concern. Feeds on fish and squid; follows fishing vessels.

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.

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Related Comparisons

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