Basstölpel vs Masked Booby
Morus bassanus verglichen mit Sula dactylatra
Side-by-Side Comparison
| Merkmal | Basstölpel | Masked Booby |
|---|---|---|
| Wissenschaftlicher Name | Morus bassanus | Sula dactylatra |
| Ordnung | Suliformes | Suliformes |
| Familie | Sulidae | Sulidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | 93,0 cm (36.6 in) | — |
| Flügelspannweite | 180,0 cm (70.9 in) | 82,4 cm (32.4 in) |
| Gewicht | 3000,0 g (105.82 oz) | 1811,8 g (63.91 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.
Masked 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.
Masked Booby
Erhaltungsstatus
Basstölpel
Masked 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
Masked 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.
Masked Booby
74–92 cm. White with black wingtips and tail; yellow bill; white orbital skin. Breeds tropical Atlantic, Pacific, and Indian ocean islands; the largest booby. Feeds on fish and squid by high plunge-dives. Often displaces other boobies at nest sites; aggressive.