ハクトウワシ vs European Robin
Haliaeetus leucocephalus 比較対象 Erithacus rubecula
Side-by-Side Comparison
| 属性 | ハクトウワシ | European Robin |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Erithacus rubecula |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Muscicapidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 79.0 cm (31.1 in) | 14.0 cm (5.5 in) |
| 翼開長 | 203.0 cm (79.9 in) | 21.0 cm (8.3 in) |
| 体重 | 4300.0 g (151.68 oz) | 18.0 g (0.63 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Insects, worms, and berries. Often follows gardeners and large animals to catch invertebrates disturbed from … |
| 一腹卵数 | 1-4 | 4-7 |
| 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.
European Robin
Woodlands, hedgerows, parks, and gardens across Europe. Remarkably tame around humans, especially in Britain.
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.
European Robin
Exquisite, melancholic melody of thin whistled phrases, rising and falling softly. Rich, warbling song year-round; both sexes sing. Alarm call is a sharp 'tic-tic-tic'.
Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
European Robin
Europe, western Asia, and parts of North Africa. Northern populations migrate south in winter; western European populations are largely resident.
保全状況
ハクトウワシ
European Robin
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
European Robin
Olive-brown upperparts with a warm orange-red breast and face bordered by grey. White belly and undertail coverts.
Thin, pointed dark brown bill
About These Birds
ハクトウワシ
ハクトウワシはアメリカ合衆国の国鳥で国の象徴である。DDT農薬使用により一度は絶滅の危機に瀕したが、見事な回復を遂げ、2007年に絶滅危惧種リストから外された。これらの力強い猛禽類は、2トンを超えるものもある鳥類最大の木の巣を作る。
European Robin
イギリスの非公式の国鳥で、縄張り意識が強く、一年中さえずる。民話では鳥の中の特別な地位を持つ。