Northern Fulmar vs Heinroth's Shearwater
Fulmarus glacialis 比較対象 Puffinus heinrothi
Side-by-Side Comparison
| 属性 | Northern Fulmar | Heinroth's Shearwater |
|---|---|---|
| 学名 | Fulmarus glacialis | Puffinus heinrothi |
| 目 | Procellariiformes | Procellariiformes |
| 科 | Procellariidae | Procellariidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 47.0 cm (18.5 in) | — |
| 翼開長 | 107.0 cm (42.1 in) | 35.7 cm (14.1 in) |
| 体重 | 750.0 g (26.46 oz) | 82.0 g (2.89 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.
Heinroth's Shearwater
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Heinroth's Shearwater
保全状況
Northern Fulmar
Heinroth's Shearwater
How to Tell Them Apart
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
Heinroth's Shearwater
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.
Heinroth's Shearwater
27 cm. Small dark shearwater; all sooty-brown with pale bill. Breeds Solomon Islands and Papua New Guinea. Critically Endangered; extremely poorly known with only a handful of records. Breeding biology almost completely unknown; one of the rarest and least-studied seabirds.