Transvolcanic Jay vs Common Raven
Aphelocoma ultramarina 对比 Corvus corax
Side-by-Side Comparison
| 属性 | Transvolcanic Jay | Common Raven |
|---|---|---|
| 学名 | Aphelocoma ultramarina | Corvus corax |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | 63.0 cm (24.8 in) |
| 翼展 | 33.2 cm (13.1 in) | 130.0 cm (51.2 in) |
| 体重 | 129.0 g (4.55 oz) | 1200.0 g (42.33 oz) |
| 食性 | -- | Omnivorous and opportunistic — carrion, small animals, insects, eggs, grain, fruit, and human refuse. Among … |
| 产卵数 | 4 | 1-8 |
| Population Trend | — | — |
Size Comparison
Body Length
Transvolcanic Jay
—
Common Raven
63.0 cm
翼展
Transvolcanic Jay
33.2 cm
Common Raven
130.0 cm
体重
Transvolcanic Jay
129.0 g
Common Raven
1200.0 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
Transvolcanic Jay
Common Raven
鸣唱
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.
Geographic Range & Migration
Transvolcanic Jay
Common Raven
Holarctic distribution across North America, Europe, Asia, and North Africa. The most widely distributed corvid.
保护状况
Least Concern
Transvolcanic Jay
Least Concern
Common Raven
How to Tell Them Apart
Transvolcanic Jay
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.
喙
Large, powerful, curved black bill
About These Birds
Common Raven
渡鸦（Corvus corax）— 广泛分布于北半球的最大雀形目鸟类。以高度智慧著称，能使用工具并解决问题。