ハクトウワシ vs Common Blackbird
Haliaeetus leucocephalus 比較対象 Turdus merula
Side-by-Side Comparison
| 属性 | ハクトウワシ | Common Blackbird |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Turdus merula |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Turdidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 79.0 cm (31.1 in) | 25.0 cm (9.8 in) |
| 翼開長 | 203.0 cm (79.9 in) | 36.0 cm (14.2 in) |
| 体重 | 4300.0 g (151.68 oz) | 100.0 g (3.53 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Earthworms, insects, berries, and fruit. Forages on the ground, turning over leaf litter. Famously pulls … |
| 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.
Common Blackbird
Woodland, hedgerows, gardens, and parks. One of the most common garden birds across Europe.
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.
Common Blackbird
Arguably Britain's finest songster: rich, flute-like phrases with deep, mellow quality. Sings persistently at dusk. Alarm is a sharp 'chook-chook'. Song includes liquid 'pew' notes.
Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Common Blackbird
Europe, Asia, and North Africa. Introduced to Australia and New Zealand. Northern populations are migratory.
保全状況
ハクトウワシ
Common Blackbird
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
Common Blackbird
Males are jet black with a bright yellow-orange bill and eye-ring. Females are dark brown with mottled underparts and a dull yellowish bill.
Bright yellow-orange bill in males, dull brownish in females
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。
Common Blackbird
クロウタドリ（Turdus merula）— ヨーロッパに広く分布するツグミ科の鳥。オスは全身黒く黄色い嘴をもち、メスは茶色。庭園や森林に生息し、美しい歌声をもつ。