Basstölpel vs Cocos Booby
Morus bassanus verglichen mit Sula brewsteri
Side-by-Side Comparison
| Merkmal | Basstölpel | Cocos Booby |
|---|---|---|
| Wissenschaftlicher Name | Morus bassanus | Sula brewsteri |
| Ordnung | Suliformes | Suliformes |
| Familie | Sulidae | Sulidae |
| Erhaltungsstatus | Least Concern | Not Evaluated |
| Länge | 93,0 cm (36.6 in) | — |
| Flügelspannweite | 180,0 cm (70.9 in) | — |
| Gewicht | 3000,0 g (105.82 oz) | 1285,4250000000002 g (45.34 oz) |
| Ernährung | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … | -- |
| Gelegegröße | 1 | 1-2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Basstölpel
Open ocean and coastal waters. Breeds in dense colonies on steep rocky islands and sea stacks.
Song & Call Comparison
Basstölpel
Loud, harsh 'urrah-urrah' grunting and croaking at breeding colonies on sea stacks. Also gives a softer 'karrr' in flight. Large colonies are extremely noisy during the breeding season.
Cocos Booby
Geographic Range & Migration
Basstölpel
North Atlantic, breeding from Newfoundland and Gulf of St. Lawrence to Norway, Iceland, and Britain. Winters at sea south to the tropics.
Cocos Booby
Erhaltungsstatus
Basstölpel
Cocos Booby
How to Tell Them Apart
Basstölpel
Brilliant white body with black wingtips and a golden-yellow wash on the head and nape. Blue-grey bill with dark lines and pale blue eye-ring.
Long, straight, pointed, pale blue-grey bill with serrated edges
Cocos Booby
About These Birds
Basstölpel
Der Basstölpel ist ein spektakulärer Sturzflugtaucher, der seine zwei Meter breiten Flügel pfeilförmig anlegt und mit bis zu 100 km/h auf das Wasser trifft. Luftsäcke unter der Haut und ein verstärkter Schädel schützen ihn vor dem Aufprall. Der Bass Rock in Schottland beherbergt über 150.000 Basstölpel – die größte einzelne Kolonie eines Seevogels weltweit.
Cocos Booby
76–84 cm. Brown and white booby restricted to Cocos Island and nearby east Pacific islands; sometimes treated as subspecies of Brown Booby. Plunge-dives for fish in productive eastern Pacific waters. Near Threatened; small breeding range; feeds on flying fish and anchovy.