ハクトウワシ vs シロエリハゲワシ
Haliaeetus leucocephalus 比較対象 Gyps fulvus
Side-by-Side Comparison
| 属性 | ハクトウワシ | シロエリハゲワシ |
|---|---|---|
| 学名 | Haliaeetus leucocephalus | Gyps fulvus |
| 目 | Accipitriformes | Accipitriformes |
| 科 | Accipitridae | Accipitridae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 79.0 cm (31.1 in) | 100.0 cm (39.4 in) |
| 翼開長 | 203.0 cm (79.9 in) | 260.0 cm (102.4 in) |
| 体重 | 4300.0 g (151.68 oz) | 8500.0 g (299.83 oz) |
| 食性 | Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … | Exclusively carrion, primarily large mammal carcasses. Feeds communally, with groups of vultures able to strip … |
| 一腹卵数 | 1-4 | 1 |
| 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.
シロエリハゲワシ
Mountains, cliffs, and open grasslands. Nests on cliff ledges in colonies. Requires thermals for soaring flight.
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.
シロエリハゲワシ
Generally silent; hisses and grunts at carrion with other vultures. Gives low croaking 'arrr' near nest. At colonies produces cackling and grunting — not melodic vocalizations.
Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
シロエリハゲワシ
Southern Europe, North Africa, the Middle East, and Central Asia. Resident in most of its range.
保全状況
ハクトウワシ
シロエリハゲワシ
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
シロエリハゲワシ
Tawny-brown body with darker flight feathers. White neck ruff and bare greyish head. Long broad wings held flat when soaring.
Hooked yellowish bill adapted for tearing carrion
Key Differences
- • Weight: Bald Eagle (4300g) vs Griffon Vulture (8500g)
- • Length: Bald Eagle (79 cm) vs Griffon Vulture (100 cm)
- • Wingspan: Bald Eagle (203 cm) vs Griffon Vulture (260 cm)
- • Habitat: Bald Eagle prefers Large bodies of open water including coasts, rivers, and lak; Griffon Vulture prefers Mountains, cliffs, and open grasslands. Nests on cliff ledge
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。
シロエリハゲワシ
The griffon vulture is one of Europe's largest flying birds and a crucial scavenger in Mediterranean ecosystems. These social birds nest in large cliff colonies and can soar for hours using thermals without flapping. Vulture populations faced a crisis from the veterinary drug diclofenac, which proved fatal when consumed through contaminated carcasses.