Australasian Gannet vs Northern Gannet
Morus serrator 비교 대상 Morus bassanus
Side-by-Side Comparison
| 속성 | Australasian Gannet | Northern Gannet |
|---|---|---|
| 학명 | Morus serrator | Morus bassanus |
| 목 | Suliformes | Suliformes |
| 과 | Sulidae | Sulidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 93.0 cm (36.6 in) |
| 날개 폭 | 92.2 cm (36.3 in) | 180.0 cm (70.9 in) |
| 체중 | 2512.5 g (88.63 oz) | 3000.0 g (105.82 oz) |
| 식성 | -- | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … |
| 산란 수 | 1 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Northern Gannet
Open ocean and coastal waters. Breeds in dense colonies on steep rocky islands and sea stacks.
Song & Call Comparison
Australasian Gannet
Northern Gannet
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.
Geographic Range & Migration
Australasian Gannet
Northern Gannet
North Atlantic, breeding from Newfoundland and Gulf of St. Lawrence to Norway, Iceland, and Britain. Winters at sea south to the tropics.
보전 상태
Australasian Gannet
Northern Gannet
How to Tell Them Apart
Australasian Gannet
Northern Gannet
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
About These Birds
Australasian Gannet
대형 가다랑어잡이새로 체장 84–94cm이며, 흰 몸통에 검은 날개 끝과 노란 빛이 도는 머리를 갖는다. 호주, 뉴질랜드, 뉴칼레도니아 남부 해안에서 번식하고 인근 해역에서 월동한다. 잠수하여 어류를 잡는다. 관심 필요 종이다.
Northern Gannet
The northern gannet is a spectacular plunge-diver, folding its two-meter wingspan into an arrow shape to hit the water at up to 100 km/h. Air sacs under the skin and a reinforced skull protect it from the impact. Bass Rock in Scotland hosts over 150,000 gannets, the largest single colony of any seabird in the world.