Common Raven vs Peregrine Falcon
Corvus corax 比較対象 Falco peregrinus
Side-by-Side Comparison
| 属性 | Common Raven | Peregrine Falcon |
|---|---|---|
| 学名 | Corvus corax | Falco peregrinus |
| 目 | Passeriformes | Falconiformes |
| 科 | Corvidae | Falconidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 63.0 cm (24.8 in) | 43.0 cm (16.9 in) |
| 翼開長 | 130.0 cm (51.2 in) | 104.0 cm (40.9 in) |
| 体重 | 1200.0 g (42.33 oz) | 750.0 g (26.46 oz) |
| 食性 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | Almost exclusively medium-sized birds caught in flight, including pigeons, doves, waterfowl, and songbirds. Hunts with … |
| 一腹卵数 | 1-8 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Common Raven
Diverse habitats from Arctic tundra to deserts, mountains, forests, and coastlines. Avoids dense urban areas but thrives near human activity.
Peregrine Falcon
Diverse habitats from tundra to tropics, typically near cliffs or tall structures. Increasingly found in cities nesting on skyscrapers and bridges.
Song & Call Comparison
Common Raven
Highly varied: deep resonant 'kraa-kraa-kraa', hollow 'tok-tok', liquid 'klonk', and wing-whooshing. Among the most intelligent corvid callers; uses calls contextually in groups.
Peregrine Falcon
A harsh, wailing 'kak-kak-kak-kak' repeated rapidly in defense of the nest. Alarm call is a long screaming 'raaak'. Mostly silent away from breeding sites.
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Peregrine Falcon
One of the most widespread birds, found on every continent except Antarctica. Migratory populations travel vast distances between breeding and wintering grounds.
保全状況
Common Raven
Peregrine Falcon
How to Tell Them Apart
Common Raven
All black with a glossy purplish-blue iridescent sheen. Shaggy throat hackles, long wedge-shaped tail, and large robust build distinguish it from crows.
Large, powerful, curved black bill
Peregrine Falcon
Blue-grey upperparts with barred white underparts. A distinctive black moustachial stripe contrasts with the white throat and cheeks.
Short, notched blue-grey bill with a yellow cere
About These Birds
Common Raven
ワタリガラス（Corvus corax）— 北半球に広く分布する最大のスズメ目の鳥。高い知性をもち、道具を使うことや問題解決能力が知られている。
Peregrine Falcon
世界最速の動物として知られるハヤブサで、急降下時には時速320キロメートルを超えることがある。南極を除く全大陸に生息し、都市部での繁殖も増加している。