Eissturmvogel vs Boyd's Shearwater
Fulmarus glacialis verglichen mit Puffinus boydi
Side-by-Side Comparison
| Merkmal | Eissturmvogel | Boyd's Shearwater |
|---|---|---|
| Wissenschaftlicher Name | Fulmarus glacialis | Puffinus boydi |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Not Evaluated |
| Länge | 47,0 cm (18.5 in) | — |
| Flügelspannweite | 107,0 cm (42.1 in) | — |
| Gewicht | 750,0 g (26.46 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.
Boyd's Shearwater
Geographic Range & Migration
Eissturmvogel
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Boyd's Shearwater
Erhaltungsstatus
Eissturmvogel
Boyd's Shearwater
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
Boyd's Shearwater
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.
Boyd's Shearwater
27 cm. Dark brown above; white below; white face with dark eye-patch. Breeds Cape Verde Islands. Ranges in tropical east Atlantic. Closely related to Barolo Shearwater; both formerly grouped in Little Shearwater complex. Near Threatened; feeds on small fish and squid.