ハクトウワシ vs Hawfinch
Haliaeetus leucocephalus 比較対象 Coccothraustes coccothraustes
Side-by-Side Comparison
| 属性 | ハクトウワシ | Hawfinch |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Coccothraustes coccothraustes |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Fringillidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 79.0 cm (31.1 in) | 18.0 cm (7.1 in) |
| 翼開長 | 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 … |
| 一腹卵数 | 1-4 | 3-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
ハクトウワシ
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
ハクトウワシ
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
ハクトウワシ
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.
保全状況
ハクトウワシ
Hawfinch
How to Tell Them Apart
ハクトウワシ
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