Blue Petrel vs Northern Fulmar
Halobaena caerulea 对比 Fulmarus glacialis
Side-by-Side Comparison
| 属性 | Blue Petrel | Northern Fulmar |
|---|---|---|
| 学名 | Halobaena caerulea | Fulmarus glacialis |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 47.0 cm (18.5 in) |
| 翼展 | 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. |
| 产卵数 | 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.
保护状况
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
蓝鹱是南极和亚南极海域的小型海洋鸟类。体背蓝灰色，腹部白色，翅上具黑色斑纹，尾呈方形。以磷虾和小型鱼类为食，善于在浪尖飞翔觅食。在南大洋岛屿的地洞中繁殖，冬季在南大洋北部海域游荡。
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.