ハクトウワシ vs オウギワシ
Haliaeetus leucocephalus 比較対象 Harpia harpyja
Side-by-Side Comparison
| 属性 | ハクトウワシ | オウギワシ |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Harpia harpyja |
| 目 | Accipitriformes | Accipitriformes |
| 科 | Accipitridae | Accipitridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 79.0 cm (31.1 in) | 100.0 cm (39.4 in) |
| 翼開長 | 203.0 cm (79.9 in) | 200.0 cm (78.7 in) |
| 体重 | 4300.0 g (151.68 oz) | 7500.0 g (264.55 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| 一腹卵数 | 1-4 | 2-3 |
| 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.
オウギワシ
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
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.
オウギワシ
Rarely heard; emits mournful whistled screams 'wheee-oo' and low croaking grunts near the nest. Vocalizations poorly documented given its remote Amazonian habitat.
Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
オウギワシ
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
保全状況
ハクトウワシ
オウギワシ
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
オウギワシ
Slate-black upperparts and head with a pale grey breast and white underparts with black barring. A distinctive split grey crest rises when the bird is alarmed.
Massive dark hooked bill, one of the largest of any eagle