Northern Fulmar vs Raggiana Bird-of-paradise
Fulmarus glacialis 比較対象 Paradisaea raggiana
Side-by-Side Comparison
| 属性 | Northern Fulmar | Raggiana Bird-of-paradise |
|---|---|---|
| 学名 | Fulmarus glacialis | Paradisaea raggiana |
| 目 | Procellariiformes | Passeriformes |
| 科 | Procellariidae | Paradisaeidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 47.0 cm (18.5 in) | 34.0 cm (13.4 in) |
| 翼開長 | 107.0 cm (42.1 in) | 45.0 cm (17.7 in) |
| 体重 | 750.0 g (26.46 oz) | 260.0 g (9.17 oz) |
| 食性 | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. | Fruit, seeds, arthropods, and small vertebrates. Males display at communal lek sites to attract females. |
| 一腹卵数 | 1 | 1-2 |
| 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.
Raggiana Bird-of-paradise
Tropical rainforest and forest edge from lowlands to mid-montane elevations in New Guinea.
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.
Raggiana Bird-of-paradise
Males emit harsh, buzzy 'kraaak' calls and explosive wailing during display. Females give softer 'waak' contact calls. Display calls are loud and chaotic at leks.
Geographic Range & Migration
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Raggiana Bird-of-paradise
Southern and eastern New Guinea. Endemic to Papua New Guinea.
保全状況
Northern Fulmar
Raggiana Bird-of-paradise
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
Raggiana Bird-of-paradise
Males have a yellow crown, emerald-green throat, and spectacular cascading orange-red flank plumes. Females are brown with rufous underparts.
Stout, slightly curved, blue-grey bill
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.
Raggiana Bird-of-paradise
The raggiana bird-of-paradise is the national bird of Papua New Guinea, featured on the national flag and coat of arms. Males gather at traditional display trees to perform elaborate courtship dances, hanging upside down and shaking their spectacular flank plumes. Alfred Russel Wallace first described the species in 1873.