Белоголовый орлан vs Northern Fulmar
Haliaeetus leucocephalus в сравнении с Fulmarus glacialis
Side-by-Side Comparison
| Характеристика | Белоголовый орлан | Northern Fulmar |
|---|---|---|
| Научное название | Haliaeetus leucocephalus | Fulmarus glacialis |
| Отряд | Accipitriformes | Procellariiformes |
| Семейство | Accipitridae | Procellariidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | 79,0 cm (31.1 in) | 47,0 cm (18.5 in) |
| Размах крыльев | 203,0 cm (79.9 in) | 107,0 cm (42.1 in) |
| Масса | 4300,0 g (151.68 oz) | 750,0 g (26.46 oz) |
| Питание | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Fish, squid, crustaceans, offal from fishing vessels, and zooplankton. Feeds by surface-seizing and shallow plunge-diving. |
| Размер кладки | 1-4 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Общие среды обитания
Нет
Белоголовый орлан only
Northern Fulmar only
Нет
Белоголовый орлан
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Northern Fulmar
Open ocean and sea cliffs. Breeds on cliff ledges and grassy slopes on northern coastlines. Pelagic outside breeding season.
Song & Call Comparison
Белоголовый орлан
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
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
Белоголовый орлан
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Northern Fulmar
North Atlantic and North Pacific oceans. Breeds from the Arctic south to Britain, France, and New England.
Охранный статус
Белоголовый орлан
Northern Fulmar
How to Tell Them Apart
Белоголовый орлан
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
Large, hooked, bright yellow bill
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
Белоголовый орлан
The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.
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.