白头海雕 vs Common Kestrel
Haliaeetus leucocephalus 对比 Falco tinnunculus
Side-by-Side Comparison
| 属性 | 白头海雕 | Common Kestrel |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Falco tinnunculus |
| 目 | Accipitriformes | Falconiformes |
| 科 | Accipitridae | Falconidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 79.0 cm (31.1 in) | 34.0 cm (13.4 in) |
| 翼展 | 203.0 cm (79.9 in) | 74.0 cm (29.1 in) |
| 体重 | 4300.0 g (151.68 oz) | 190.0 g (6.70 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … |
| 产卵数 | 1-4 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
白头海雕
Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
Song & Call Comparison
白头海雕
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.
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
Geographic Range & Migration
白头海雕
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
保护状况
白头海雕
Common Kestrel
How to Tell Them Apart
白头海雕
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
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
About These Birds
白头海雕
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.
Common Kestrel
红隼（Falco tinnunculus）— 广泛分布于欧洲、亚洲和非洲的小型隼。以悬停空中寻觅地面猎物的行为为特征。