Common Raven vs Grey Crow
Corvus corax 比較対象 Corvus tristis
Side-by-Side Comparison
| 属性 | Common Raven | Grey Crow |
|---|---|---|
| 学名 | Corvus corax | Corvus tristis |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 63.0 cm (24.8 in) | — |
| 翼開長 | 130.0 cm (51.2 in) | 64.9 cm (25.6 in) |
| 体重 | 1200.0 g (42.33 oz) | 635.0 g (22.40 oz) |
| 食性 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | -- |
| 一腹卵数 | 1-8 | 2 |
| Population Trend | — | — |
Size Comparison
Body Length
Common Raven
63.0 cm
Grey Crow
—
翼開長
Common Raven
130.0 cm
Grey Crow
64.9 cm
体重
Common Raven
1200.0 g
Grey Crow
635.0 g
Habitat Comparison
Common Raven
Diverse habitats from Arctic tundra to deserts, mountains, forests, and coastlines. Avoids dense urban areas but thrives near human activity.
Song & Call Comparison
Common Raven
さえずり
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.
Grey Crow
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Grey Crow
保全状況
Least Concern
Common Raven
Least Concern
Grey Crow
How to Tell Them Apart
Common Raven
羽毛
All black with a glossy purplish-blue iridescent sheen. Shaggy throat hackles, long wedge-shaped tail, and large robust build distinguish it from crows.
くちばし
Large, powerful, curved black bill
Grey Crow
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。