オウギワシ vs Mandarin Duck
Harpia harpyja 比較対象 Aix galericulata
Side-by-Side Comparison
| 属性 | オウギワシ | Mandarin Duck |
|---|---|---|
| 学名 | Harpia harpyja | Aix galericulata |
| 目 | Accipitriformes | Anseriformes |
| 科 | Accipitridae | Anatidae |
| 保全状況 | Vulnerable | Least Concern |
| 体長 | 100.0 cm (39.4 in) | 44.0 cm (17.3 in) |
| 翼開長 | 200.0 cm (78.7 in) | 70.0 cm (27.6 in) |
| 体重 | 7500.0 g (264.55 oz) | 570.0 g (20.11 oz) |
| 食性 | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … | Seeds, acorns, grains, aquatic plants, insects, snails, and small fish. Forages by dabbling, walking, and … |
| 一腹卵数 | 2-3 | 7-14 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
オウギワシ
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Mandarin Duck
Wooded lakes, rivers, and ponds surrounded by dense forest. Unlike most ducks, regularly perches in trees and nests in tree cavities.
Song & Call Comparison
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.
Mandarin Duck
Male gives a low whistled 'hib' or 'weep'. Female utters a soft quacking 'kek'. Generally quiet and secretive. No loud territorial song; vocalizations subtle and brief.
Geographic Range & Migration
オウギワシ
Central and South America from southern Mexico through Brazil and northern Argentina. Range is shrinking due to deforestation.
Mandarin Duck
Native to East Asia including eastern Russia, China, Japan, and Korea. Feral populations established in Britain and western Europe.
保全状況
オウギワシ
Mandarin Duck
How to Tell Them Apart
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
Mandarin Duck
Breeding males have an elaborate pattern of orange, green, white, and purple with distinctive orange sail feathers on the back. Females are grey-brown with a white eye-ring and stripe.
Small red bill in breeding males, pinkish in females
About These Birds
オウギワシ
ハーピーワシは世界で最も強力な猛禽類の一つで、ハイイログマの爪ほどの大きさの鉤爪を持つ。パナマの国鳥。大規模な未撹乱の森林の生息地を必要とするため、森林破壊がこの種の最大の脅威。
Mandarin Duck
オシドリ。東アジア原産の美しいカモ。雄は鮮やかなオレンジ色の「帆羽」と複雑な羽毛模様が特徴的。体長41〜49cm。森林の池や川に生息し、樹洞に巣を作る。ドングリや水草を食べる。低危険種。