Common Raven vs Andaman Treepie
Corvus corax 比較対象 Dendrocitta bayleii
Side-by-Side Comparison
| 属性 | Common Raven | Andaman Treepie |
|---|---|---|
| 学名 | Corvus corax | Dendrocitta bayleii |
| 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) | 23.3 cm (9.2 in) |
| 体重 | 1200.0 g (42.33 oz) | 102.5 g (3.62 oz) |
| 食性 | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … | -- |
| 一腹卵数 | 1-8 | 3 |
| 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.
Andaman Treepie
Geographic Range & Migration
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
Andaman Treepie
保全状況
Common Raven
Andaman Treepie
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
Andaman Treepie
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。
Andaman Treepie
The Andaman Treepie is a vulnerable corvid with a 23.3 cm wingspan, weighing 102.5 grams, endemic to the Andaman Islands. It inhabits forest and woodland, foraging omnivourously for insects, fruit, and small animals. Its restricted range on the islands makes it conservation-dependent.