Blue Petrel vs Northern Fulmar
Halobaena caerulea 比較対象 Fulmarus glacialis
Side-by-Side Comparison
| 属性 | Blue Petrel | Northern Fulmar |
|---|---|---|
| 学名 | Halobaena caerulea | 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 | 41.2 cm (16.2 in) | 107.0 cm (42.1 in) |
| 体重 | 201.5 g (7.11 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
Blue Petrel
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
Blue Petrel
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
保全状況
Blue Petrel
Northern Fulmar
How to Tell Them Apart
Blue Petrel
Northern Fulmar
Light morph: white head and underparts with grey wings and back. Dark morph: entirely grey. Tube-nosed bill and stiff-winged flight distinctive at sea.
Yellowish hooked bill with prominent tubular nostrils on top
About These Birds
Blue Petrel
体長26〜32 cm、翼幅60〜71 cm。白い先端の四角い尾を持つ青灰色の背面；腹面は白。ミズナギドリに似るが尾のパターンが識別の鍵。南極亜南極諸島（サウスジョージア・クロゼ・ケルゲレン）で繁殖。南大洋を広く回遊し甲殻類・小魚を食べる。
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.