Streaked Shearwater vs Northern Fulmar
Calonectris leucomelas comparado com Fulmarus glacialis
Side-by-Side Comparison
| Atributo | Streaked Shearwater | Northern Fulmar |
|---|---|---|
| Nome científico | Calonectris leucomelas | Fulmarus glacialis |
| Ordem | Procellariiformes | Procellariiformes |
| Família | Procellariidae | Procellariidae |
| Estado de conservação | Near Threatened | Least Concern |
| Comprimento | — | 47,0 cm (18.5 in) |
| Envergadura | 63,8 cm (25.1 in) | 107,0 cm (42.1 in) |
| Peso | 530,5 g (18.71 oz) | 750,0 g (26.46 oz) |
| Dieta | -- | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. |
| Tamanho da postura | 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
Streaked 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
Streaked Shearwater
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Estado de conservação
Streaked Shearwater
Northern Fulmar
How to Tell Them Apart
Streaked 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
Streaked Shearwater
Pardela riscada de 43–51 cm, a maior pardela do oceano Pacífico Ocidental, reproduz em ilhas do noroeste do Pacífico e migra para o sul.
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.