Common Raven vs Forest Raven
Corvus corax 比較対象 Corvus tasmanicus
Side-by-Side Comparison
| 属性 | Common Raven | Forest Raven |
|---|---|---|
| 学名 | Corvus corax | Corvus tasmanicus |
| 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) | 68.9 cm (27.1 in) |
| 体重 | 1200.0 g (42.33 oz) | 647.5 g (22.84 oz) |
| 食性 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | -- |
| 一腹卵数 | 1-8 | 3-6 |
| Population Trend | — | — |
Size Comparison
Body Length
Common Raven
63.0 cm
Forest Raven
—
翼開長
Common Raven
130.0 cm
Forest Raven
68.9 cm
体重
Common Raven
1200.0 g
Forest Raven
647.5 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.
Forest Raven
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Forest Raven
保全状況
Least Concern
Common Raven
Least Concern
Forest Raven
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
Forest Raven
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。