Wedge-tailed Shearwater vs Northern Fulmar
Ardenna pacifica 比較対象 Fulmarus glacialis
Side-by-Side Comparison
| 属性 | Wedge-tailed Shearwater | Northern Fulmar |
|---|---|---|
| 学名 | Ardenna pacifica | Fulmarus glacialis |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | 47.0 cm (18.5 in) |
| 翼開長 | 59.4 cm (23.4 in) | 107.0 cm (42.1 in) |
| 体重 | 435.0 g (15.34 oz) | 750.0 g (26.46 oz) |
| 食性 | -- | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Northern Fulmar
Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.
Song & Call Comparison
Wedge-tailed Shearwater
Northern Fulmar
A nasal, cackling 'kak-kak-kak-kak' or grunting 'uh-uh-uh' at the nest and colony. Less melodic than petrels. In flight gives occasional single nasal calls.
Geographic Range & Migration
Wedge-tailed Shearwater
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
保全状況
Wedge-tailed Shearwater
Northern Fulmar
How to Tell Them Apart
Wedge-tailed Shearwater
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
About These Birds
Wedge-tailed Shearwater
全長38〜46cm、翼開長97〜105cm。楔形の長い尾が識別のポイント；上面は暗褐色；腹面は多型（暗色型または白腹型）。熱帯太平洋・インド洋の島々で繁殖。外洋に広く分布。魚や烏賊を食べ、しばしばマグロと群れをなす。普通種で広域分布。
Northern Fulmar
The northern fulmar is a long-lived seabird that can survive over 40 years. It defends its nest by projectile-vomiting a foul-smelling stomach oil at intruders, which can mat the feathers of predators and cause fatal loss of waterproofing. Fulmars have expanded their breeding range dramatically southward over the past two centuries.