Northern Gannet vs Red-crowned Crane
Morus bassanus 对比 Grus japonensis
Side-by-Side Comparison
| 属性 | Northern Gannet | Red-crowned Crane |
|---|---|---|
| 学名 | Morus bassanus | Grus japonensis |
| 目 | Suliformes | Gruiformes |
| 科 | Sulidae | Gruidae |
| 保护状况 | Least Concern | Endangered |
| 体长 | 93.0 cm (36.6 in) | 150.0 cm (59.1 in) |
| 翼展 | 180.0 cm (70.9 in) | 250.0 cm (98.4 in) |
| 体重 | 3000.0 g (105.82 oz) | 8900.0 g (313.94 oz) |
| 食性 | Shoaling fish, especially mackerel, herring, and capelin. Plunge-dives from heights of 30 meters at speeds … | Omnivorous — fish, amphibians, insects, grasses, and waste grain. Forages in wetlands and agricultural fields. |
| 产卵数 | 1 | 2 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Northern Gannet
Open ocean and coastal waters. Breeds in dense colonies on steep rocky islands and sea stacks.
Red-crowned Crane
Freshwater marshes, bogs, and wet grasslands for breeding. Winters in coastal mudflats, estuaries, and rice paddies.
Song & Call Comparison
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.
Red-crowned Crane
Spectacular unison 'bugling' call: a clear, resonant, far-carrying trumpet 'kru-ru-ru' given by paired birds simultaneously. Among the most majestic bird calls in Asia.
Geographic Range & Migration
Northern Gannet
North Atlantic, breeding from Newfoundland and Gulf of St. Lawrence to Norway, Iceland, and Britain. Winters at sea south to the tropics.
Red-crowned Crane
Eastern Asia — breeds in northeastern China, southeastern Russia, and Hokkaido, Japan. Winters in Korea and eastern China.
保护状况
Northern Gannet
Red-crowned Crane
How to Tell Them Apart
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
Red-crowned Crane
White body plumage with black secondary flight feathers and throat. Bare red crown patch. Black face and neck. One of the most elegant crane species.
Long, straight, olive-green bill
About These Birds
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.
Red-crowned Crane
The red-crowned crane is one of the rarest crane species and a potent symbol of longevity and fidelity in East Asian culture. Their elaborate unison call and dancing displays have inspired art and folklore for millennia. The resident population on Hokkaido, Japan, recovered from about 33 birds in 1952 to over 1,800 today.