Northern Fulmar vs Kermadec Petrel
Fulmarus glacialis เปรียบเทียบกับ Pterodroma neglecta
Side-by-Side Comparison
| คุณสมบัติ | Northern Fulmar | Kermadec Petrel |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Fulmarus glacialis | Pterodroma neglecta |
| อันดับ | Procellariiformes | Procellariiformes |
| วงศ์ตระกูล | Procellariidae | Procellariidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 47.0 cm (18.5 in) | — |
| กว้างปีก | 107.0 cm (42.1 in) | 57.6 cm (22.7 in) |
| น้ำหนัก | 750.0 g (26.46 oz) | 452.5 g (15.96 oz) |
| อาหาร | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. | -- |
| จำนวนไข่ | 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.
Kermadec Petrel
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Kermadec Petrel
สถานะการอนุรักษ์
Northern Fulmar
Kermadec 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
Kermadec 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.
Kermadec Petrel
38 cm. Polymorphic: pale morph has white underparts; dark morph is all brown-grey. Breeds Kermadec, Juan Fernandez, and Pacific islands. Ranges widely in subtropical and tropical Pacific. Feeds on fish and squid; nests in rock crevices and burrows.