Buller's Shearwater vs Northern Fulmar
Ardenna bulleri 비교 대상 Fulmarus glacialis
Side-by-Side Comparison
| 속성 | Buller's Shearwater | Northern Fulmar |
|---|---|---|
| 학명 | Ardenna bulleri | Fulmarus glacialis |
| 목 | Procellariiformes | Procellariiformes |
| 과 | Procellariidae | Procellariidae |
| 보전 상태 | Vulnerable | Least Concern |
| 체장 | — | 47.0 cm (18.5 in) |
| 날개 폭 | 55.2 cm (21.7 in) | 107.0 cm (42.1 in) |
| 체중 | 388.5 g (13.70 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
Buller's 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
Buller's Shearwater
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
보전 상태
Buller's Shearwater
Northern Fulmar
How to Tell Them Apart
Buller's Shearwater
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
Buller's Shearwater
몸길이 46~47cm, 날개폭 96~99cm. 독특한 외형으로 위면은 어둡고 회백색 M자 무늬가 있으며, 아래면은 흰색에 회색 머리. 뉴질랜드 스네어스 제도와 포어나이츠 제도에서만 번식. 북태평양으로 이동. 준위협(NT) 종으로, 물고기와 오징어를 먹으며 바다에서 무리를 이룹니다.
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.