白头海雕 vs Hawfinch
Haliaeetus leucocephalus 对比 Coccothraustes coccothraustes
Side-by-Side Comparison
| 属性 | 白头海雕 | Hawfinch |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Coccothraustes coccothraustes |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Fringillidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 79.0 cm (31.1 in) | 18.0 cm (7.1 in) |
| 翼展 | 203.0 cm (79.9 in) | 32.0 cm (12.6 in) |
| 体重 | 4300.0 g (151.68 oz) | 55.0 g (1.94 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Seeds and kernels, especially from cherries, olives, elms, and hornbeams. The bill exerts a force … |
| 产卵数 | 1-4 | 3-5 |
| 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.
Hawfinch
Deciduous and mixed woodland, orchards, parks, and large gardens with mature fruiting trees.
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.
Hawfinch
A sharp, metallic 'tsick' call — the primary vocalization and often all that's heard. Song is a thin, reedy warble. Generally inconspicuous vocally despite its striking appearance.
Geographic Range & Migration
白头海雕
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Hawfinch
Europe, North Africa, and western and central Asia. Partially migratory, with northern populations moving south in winter.
保护状况
白头海雕
Hawfinch
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
Hawfinch
Orange-brown head with a black bib and eye stripe. Warm brown back, grey nape, and broad white wing bar. Massive head and bill give a top-heavy appearance.
Enormously powerful, conical, pale bill capable of cracking cherry and olive stones
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.
Hawfinch
锡嘴雀是欧洲和亚洲温带林地的粗壮雀类，喙硕大有力，可以磕开坚硬的果核。羽色棕褐，头部具橙棕色，翅黑色带白斑。栖息于落叶林和混交林，以硬果、浆果和种子为食。冬季常集结成群在林地觅食。