Eissturmvogel vs Mottled Petrel
Fulmarus glacialis verglichen mit Pterodroma inexpectata
Side-by-Side Comparison
| Merkmal | Eissturmvogel | Mottled Petrel |
|---|---|---|
| Wissenschaftlicher Name | Fulmarus glacialis | Pterodroma inexpectata |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | 47,0 cm (18.5 in) | — |
| Flügelspannweite | 107,0 cm (42.1 in) | 50,0 cm (19.7 in) |
| Gewicht | 750,0 g (26.46 oz) | 344,0 g (12.13 oz) |
| Ernährung | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. | -- |
| Gelegegröße | 1 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Eissturmvogel
Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.
Song & Call Comparison
Eissturmvogel
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.
Mottled Petrel
Geographic Range & Migration
Eissturmvogel
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Mottled Petrel
Erhaltungsstatus
Eissturmvogel
Mottled Petrel
How to Tell Them Apart
Eissturmvogel
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.
Yellowish hooked bill with prominent tubular nostrils on top
Mottled Petrel
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.
Mottled Petrel
33–36 cm. Dark grey above with bold dark M-mark; white below with distinctive dark belly patch. Breeds New Zealand subantarctic islands (Snares, Chatham, Antipodes). Migrates to North Pacific in boreal winter. Near Threatened; feeds on squid and crustaceans.