Small Saint Helena Petrel vs Northern Fulmar
Bulweria bifax 比較対象 Fulmarus glacialis
Side-by-Side Comparison
| 属性 | Small Saint Helena Petrel | Northern Fulmar |
|---|---|---|
| 学名 | Bulweria bifax | Fulmarus glacialis |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Extinct | Least Concern |
| 体長 | — | 47.0 cm (18.5 in) |
| 翼開長 | — | 107.0 cm (42.1 in) |
| 体重 | 167.17 g (5.90 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
Song & Call Comparison
Small Saint Helena 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
Small Saint Helena Petrel
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
保全状況
Small Saint Helena Petrel
Northern Fulmar
How to Tell Them Apart
Small Saint Helena Petrel
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
About These Birds
Small Saint Helena Petrel
絶滅；セントヘレナ島の亜化石の骨のみから知られる。バルウェリアミズナギドリより小さく、17世紀の人間のセントヘレナへの入植後まもなく外来捕食動物により絶滅した。人類の到来によりほぼ絶滅させられたセントヘレナ固有の海鳥群集の一員。
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.