Great Shearwater vs Northern Fulmar
Ardenna gravis 비교 대상 Fulmarus glacialis
Side-by-Side Comparison
| 속성 | Great Shearwater | Northern Fulmar |
|---|---|---|
| 학명 | Ardenna gravis | Fulmarus glacialis |
| 목 | Procellariiformes | Procellariiformes |
| 과 | Procellariidae | Procellariidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | 47.0 cm (18.5 in) |
| 날개 폭 | 63.6 cm (25.0 in) | 107.0 cm (42.1 in) |
| 체중 | 832.5 g (29.37 oz) | 750.0 g (26.46 oz) |
| 식성 | -- | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. |
| 산란 수 | 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
Great Shearwater
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
Great Shearwater
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
보전 상태
Great Shearwater
Northern Fulmar
How to Tell Them Apart
Great Shearwater
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
About These Birds
Great Shearwater
몸길이 43~51cm, 날개폭 105~122cm. 대형으로 위면은 진갈색이고 배는 흰색, 검은 머리꼭지, 윗날개에 독특한 비늘 무늬. 트리스탄다쿠냐, 고프 섬, 포클랜드에서 번식하며 북대서양으로 이동. 물고기와 오징어를 먹으며, 번식 후 영국 해안을 지나는 장관적인 이동을 보입니다.
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.