อินทรีหัวขาว vs Northern Fulmar
Haliaeetus leucocephalus เปรียบเทียบกับ Fulmarus glacialis
Side-by-Side Comparison
| คุณสมบัติ | อินทรีหัวขาว | Northern Fulmar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Haliaeetus leucocephalus | Fulmarus glacialis |
| อันดับ | Accipitriformes | Procellariiformes |
| วงศ์ตระกูล | Accipitridae | Procellariidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | 79.0 cm (31.1 in) | 47.0 cm (18.5 in) |
| กว้างปีก | 203.0 cm (79.9 in) | 107.0 cm (42.1 in) |
| น้ำหนัก | 4300.0 g (151.68 oz) | 750.0 g (26.46 oz) |
| อาหาร | 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. |
| จำนวนไข่ | 1-4 | 1 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ถิ่นที่อยู่อาศัยร่วมกัน
ไม่มี
อินทรีหัวขาว only
Northern Fulmar only
ไม่มี
อินทรีหัวขาว
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
อินทรีหัวขาว
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
อินทรีหัวขาว
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.
สถานะการอนุรักษ์
อินทรีหัวขาว
Northern Fulmar
How to Tell Them Apart
อินทรีหัวขาว
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
อินทรีหัวขาว
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.