Northern Fulmar vs Townsend's Shearwater
Fulmarus glacialis 비교 대상 Puffinus auricularis
Side-by-Side Comparison
| 속성 | Northern Fulmar | Townsend's Shearwater |
|---|---|---|
| 학명 | Fulmarus glacialis | Puffinus auricularis |
| 목 | Procellariiformes | Procellariiformes |
| 과 | Procellariidae | Procellariidae |
| 보전 상태 | Least Concern | Critically Endangered |
| 체장 | 47.0 cm (18.5 in) | — |
| 날개 폭 | 107.0 cm (42.1 in) | 44.0 cm (17.3 in) |
| 체중 | 750.0 g (26.46 oz) | 324.0 g (11.43 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
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.
Townsend's Shearwater
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Townsend's Shearwater
보전 상태
Northern Fulmar
Townsend's Shearwater
How to Tell Them Apart
Northern Fulmar
Yellowish hooked bill with prominent tubular nostrils on top
Townsend'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.
Townsend's Shearwater
33–35 cm. Dark above; white below with dark vent and undertail. Breeds Revillagigedo Islands (Mexico); Critically Endangered with fewer than 1,000 pairs. Threatened by introduced cats and rats; strictly nocturnal at colonies. Ranges in eastern Pacific.