白头海雕 vs Common Nightingale
Haliaeetus leucocephalus 对比 Luscinia megarhynchos
Side-by-Side Comparison
| 属性 | 白头海雕 | Common Nightingale |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Luscinia megarhynchos |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Muscicapidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 79.0 cm (31.1 in) | 16.5 cm (6.5 in) |
| 翼展 | 203.0 cm (79.9 in) | 25.0 cm (9.8 in) |
| 体重 | 4300.0 g (151.68 oz) | 21.0 g (0.74 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Insects and larvae, supplemented with berries in autumn. Forages on or near the ground in … |
| 产卵数 | 1-4 | 4-5 |
| 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 Nightingale
Dense thickets, scrub, and undergrowth in deciduous woodland. Prefers areas with thick ground cover near water.
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 Nightingale
Considered Europe's finest songster: an extraordinarily rich, loud, flute-like melody of bubbling trills, slow whistles, and a distinctive crescendo 'lu-lu-lu'. Sings day and night.
Geographic Range & Migration
白头海雕
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Common Nightingale
Breeds in Europe and western Asia. Winters in sub-Saharan Africa. A long-distance migrant crossing the Sahara.
保护状况
白头海雕
Common Nightingale
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 Nightingale
Plain warm brown upperparts with a rufous-chestnut tail. Pale greyish-white underparts. Unremarkable appearance belies its remarkable voice.
Thin, pointed, dark brown bill
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 Nightingale
夜莺（Luscinia megarhynchos）— 分布于欧洲和中亚，在非洲越冬。以夜间也能听到的复杂而丰富的歌声著称。