Australasian Gannet vs Northern Gannet
Morus serrator 比較対象 Morus bassanus
Side-by-Side Comparison
| 属性 | Australasian Gannet | Northern Gannet |
|---|---|---|
| 学名 | Morus serrator | Morus bassanus |
| 目 | Suliformes | Suliformes |
| 科 | Sulidae | Sulidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 93.0 cm (36.6 in) |
| 翼開長 | 92.2 cm (36.3 in) | 180.0 cm (70.9 in) |
| 体重 | 2512.5 g (88.63 oz) | 3000.0 g (105.82 oz) |
| 食性 | -- | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … |
| 一腹卵数 | 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.
保全状況
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
オーストラリアガネット。オーストラリアとニュージーランドの沿岸に生息する大型の海鳥。体長84〜91cm。白い体と黄色い頭が特徴的。海面上から急降下して魚を捕食する。低危険種。
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.