Barn Swallow vs オウギワシ
Hirundo rustica 比較対象 Harpia harpyja
Side-by-Side Comparison
| 属性 | Barn Swallow | オウギワシ |
|---|---|---|
| 学名 | Hirundo rustica | Harpia harpyja |
| 目 | Passeriformes | Accipitriformes |
| 科 | Hirundinidae | Accipitridae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 19.0 cm (7.5 in) | 100.0 cm (39.4 in) |
| 翼開長 | 33.0 cm (13.0 in) | 200.0 cm (78.7 in) |
| 体重 | 19.0 g (0.67 oz) | 7500.0 g (264.55 oz) |
| 食性 | Aerial insects caught in continuous agile flight, including flies, beetles, moths, and aphids. Drinks by … | Arboreal mammals including sloths, monkeys, and opossums, which make up over 70% of the diet. … |
| 一腹卵数 | 2-7 | 2-3 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Barn Swallow
Open farmland, meadows, and areas near water. Nests almost exclusively in human-made structures such as barns, bridges, and eaves.
オウギワシ
Tropical lowland rainforests, requiring large tracts of continuous forest with tall emergent trees for nesting.
Song & Call Comparison
Barn Swallow
A rapid, twittering song: a long stream of 'vit-vit-vit' and rolling chirps. Also gives a sharp 'vit' flight call. Song can last many minutes without pause. Musical and liquid.
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
Barn Swallow
Breeds across the Northern Hemisphere in North America, Europe, and Asia. Winters in South America, Africa, and South Asia.
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
Barn Swallow
オウギワシ
How to Tell Them Apart
Barn Swallow
Metallic blue-black upperparts, rufous forehead and throat, and pale buff to rufous underparts. Deeply forked tail with elongated outer streamers.
Short, wide, flat black bill adapted for catching insects in flight
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
About These Birds
Barn Swallow
ツバメは世界で最も広く分布するツバメ科の種で、スズメ目の中でも最長の渡りを行うもののひとつ。北半球全体にわたってその到来が春の訪れを告げ、古代ギリシャから現代の詩に至るまで文化的な言及を生んできた。ツバメは営巣にほぼ完全に人工構造物を利用するようになっている。
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。