Northern Fulmar vs Large Saint Helena Petrel
Fulmarus glacialis 比較対象 Pterodroma rupinarum
Side-by-Side Comparison
| 属性 | Northern Fulmar | Large Saint Helena Petrel |
|---|---|---|
| 学名 | Fulmarus glacialis | Pterodroma rupinarum |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Extinct |
| 体長 | 47.0 cm (18.5 in) | — |
| 翼開長 | 107.0 cm (42.1 in) | — |
| 体重 | 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 | -- |
| Population Trend | — | — |
Size Comparison
Song & Call Comparison
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.
Large Saint Helena Petrel
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Large Saint Helena Petrel
保全状況
Northern Fulmar
Large Saint Helena Petrel
How to Tell Them Apart
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
Large Saint Helena Petrel
About These Birds
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.
Large Saint Helena Petrel
Extinct; known only from subfossil bones found on St. Helena. Medium-large petrel that went extinct within the last few centuries, likely due to human settlement, habitat destruction, and introduced predators. Related to living Pterodroma species; part of the endemic St. Helena avifauna.