Northern Fulmar vs Black Petrel
Fulmarus glacialis в сравнении с Procellaria parkinsoni
Side-by-Side Comparison
| Характеристика | Northern Fulmar | Black Petrel |
|---|---|---|
| Научное название | Fulmarus glacialis | Procellaria parkinsoni |
| Отряд | Procellariiformes | Procellariiformes |
| Семейство | Procellariidae | Procellariidae |
| Охранный статус | Least Concern | Vulnerable |
| Длина | 47,0 cm (18.5 in) | — |
| Размах крыльев | 107,0 cm (42.1 in) | 72,6 cm (28.6 in) |
| Масса | 750,0 g (26.46 oz) | 737,8333333333334 g (26.03 oz) |
| Питание | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. | -- |
| Размер кладки | 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
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.
Black Petrel
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Black Petrel
Охранный статус
Northern Fulmar
Black Petrel
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
Black Petrel
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.
Black Petrel
46 cm. All-black petrel with pale yellowish bill with dark culmen ridge. Breeds only Great and Little Barrier islands off New Zealand. Vulnerable; migrates to eastern Pacific after breeding. Threatened by introduced predators; feeds on squid and fish.