兀鹫 vs Northern Fulmar
Gyps fulvus 对比 Fulmarus glacialis
Side-by-Side Comparison
| 属性 | 兀鹫 | Northern Fulmar |
|---|---|---|
| 学名 | Gyps fulvus | Fulmarus glacialis |
| 目 | Accipitriformes | Procellariiformes |
| 科 | Accipitridae | Procellariidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 100.0 cm (39.4 in) | 47.0 cm (18.5 in) |
| 翼展 | 260.0 cm (102.4 in) | 107.0 cm (42.1 in) |
| 体重 | 8500.0 g (299.83 oz) | 750.0 g (26.46 oz) |
| 食性 | Exclusively carrion, primarily large mammal carcasses. Feeds communally, with groups of vultures able to strip … | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. |
| 产卵数 | 1 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
兀鹫
Mountains, cliffs, and open grasslands. Nests on cliff ledges in colonies. Requires thermals for soaring flight.
Northern Fulmar
Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.
Song & Call Comparison
兀鹫
Generally silent; hisses and grunts at carrion with other vultures. Gives low croaking 'arrr' near nest. At colonies produces cackling and grunting — not melodic vocalizations.
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
兀鹫
Southern Europe, North Africa, the Middle East, and Central Asia. Resident in most of its range.
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
保护状况
兀鹫
Northern Fulmar
How to Tell Them Apart
兀鹫
Tawny-brown body with darker flight feathers. White neck ruff and bare greyish head. Long broad wings held flat when soaring.
Hooked yellowish bill adapted for tearing carrion
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
兀鹫
The griffon vulture is one of Europe's largest flying birds and a crucial scavenger in Mediterranean ecosystems. These social birds nest in large cliff colonies and can soar for hours using thermals without flapping. Vulture populations faced a crisis from the veterinary drug diclofenac, which proved fatal when consumed through contaminated carcasses.
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.