Common Raven vs Amami Jay
Corvus corax 比較対象 Garrulus lidthi
Side-by-Side Comparison
| 属性 | Common Raven | Amami Jay |
|---|---|---|
| 学名 | Corvus corax | Garrulus lidthi |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Least Concern | Vulnerable |
| 体長 | 63.0 cm (24.8 in) | — |
| 翼開長 | 130.0 cm (51.2 in) | 34.8 cm (13.7 in) |
| 体重 | 1200.0 g (42.33 oz) | 125.0 g (4.41 oz) |
| 食性 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | -- |
| 一腹卵数 | 1-8 | 3-5 |
| 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.
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.
Amami Jay
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Amami Jay
保全状況
Common Raven
Amami Jay
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
Amami Jay
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。
Amami Jay
The Amami Jay is a vulnerable corvid weighing 125 g with a broad 34.8 cm wingspan, endemic to the Amami Islands of southern Japan. It has striking blue and chestnut plumage and inhabits subtropical broadleaf forests where it caches food.