Eissturmvogel vs Cook's Petrel

Fulmarus glacialis verglichen mit Pterodroma cookii

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Side-by-Side Comparison

Merkmal Eissturmvogel Cook's Petrel
Wissenschaftlicher Name Fulmarus glacialis Pterodroma cookii
Ordnung Procellariiformes Procellariiformes
Familie Procellariidae Procellariidae
Erhaltungsstatus Least Concern Vulnerable
Länge 47,0 cm (18.5 in)
Flügelspannweite 107,0 cm (42.1 in) 42,6 cm (16.8 in)
Gewicht 750,0 g (26.46 oz) 194,33333333333334 g (6.85 oz)
Ernährung Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. --
Gelegegröße 1 1
Population Trend
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Size Comparison

Body Length
Eissturmvogel 47,0 cm
Cook's Petrel
Flügelspannweite
Eissturmvogel 107,0 cm
Cook's Petrel 42,6 cm
Gewicht
Eissturmvogel 750,0 g
Cook's Petrel 194,33333333333334 g
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Habitat Comparison

Gemeinsame Lebensräume

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Eissturmvogel only

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Cook's Petrel only

Eissturmvogel

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

Eissturmvogel

Gesang

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.

Cook's Petrel

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Geographic Range & Migration

Eissturmvogel

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

Cook's Petrel

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Erhaltungsstatus

Least Concern

Eissturmvogel

Vulnerable

Cook's Petrel

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How to Tell Them Apart

Eissturmvogel

Gefieder

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.

Schnabel

Yellowish hooked bill with prominent tubular nostrils on top

Cook's Petrel

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About These Birds

Eissturmvogel

Der Eissturmvogel ist ein langlebiger Seevogel, der über 40 Jahre alt werden kann. Er verteidigt sein Nest, indem er Eindringlinge mit übel riechendem Magenöl bespuckt, das die Federn von Fressfeinden verkleben und deren Wasserdichtigkeit zerstören kann – mitunter mit tödlichen Folgen. Der Eissturmvogel hat sein Brutgebiet in den letzten zwei Jahrhunderten drastisch nach Süden ausgedehnt.

Cook's Petrel

26–30 cm, wingspan 66 cm. Pale grey above with dark M-mark; white underparts with dark partial collar and carpal bar. Breeds only on islands off New Zealand (Little Barrier, Codfish). Vulnerable; migrates to North Pacific. Feeds on squid and crustaceans.

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Related Comparisons

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