ハクトウワシ vs Japanese White-eye
Haliaeetus leucocephalus 比較対象 Zosterops japonicus
Side-by-Side Comparison
| 属性 | ハクトウワシ | Japanese White-eye |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Zosterops japonicus |
| 目 | Accipitriformes | Passeriformes |
| 科 | Accipitridae | Zosteropidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 79.0 cm (31.1 in) | 11.5 cm (4.5 in) |
| 翼開長 | 203.0 cm (79.9 in) | 17.0 cm (6.7 in) |
| 体重 | 4300.0 g (151.68 oz) | 11.0 g (0.39 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Insects, nectar, and fruit. Active gleaner that flits through foliage and visits flowers. Important pollinator … |
| 一腹卵数 | 1-4 | 2-6 |
| 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.
Japanese White-eye
Broadleaf evergreen forests, gardens, parks, and suburban areas. Highly adaptable and common in East Asian gardens.
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.
Japanese White-eye
Sweet, high-pitched 'tsee-tsee-tsee' whistle and soft melodic warbling. Flocks produce a continuous tinkling chorus. Alarm is a sharper 'tset'. Song is gentle and rhythmic.
Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Japanese White-eye
East Asia including Japan, China, Korea, Taiwan, Vietnam, and the Philippines. Introduced to Hawaii and other Pacific islands.
保全状況
ハクトウワシ
Japanese White-eye
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
Japanese White-eye
Olive-green upperparts with a bright white eye-ring. Yellow throat and undertail coverts. Greyish-white belly.
Thin, pointed, slightly decurved dark 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。
Japanese White-eye
The Japanese white-eye is a familiar garden bird across East Asia, beloved in Japan where it is called mejiro. These sociable birds form flocks outside the breeding season and are important pollinators of plum and cherry blossoms. Unfortunately, introduced populations in Hawaii have become invasive, competing with native honeycreepers.