American Crow vs Thick-billed Raven
Corvus brachyrhynchos 对比 Corvus crassirostris
Side-by-Side Comparison
| 属性 | American Crow | Thick-billed Raven |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Corvus crassirostris |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 45.0 cm (17.7 in) | — |
| 翼展 | 99.0 cm (39.0 in) | 89.4 cm (35.2 in) |
| 体重 | 450.0 g (15.87 oz) | 1135.0 g (40.04 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | -- |
| 产卵数 | 3-7 | 4 |
| Population Trend | — | — |
Size Comparison
Body Length
American Crow
45.0 cm
Thick-billed Raven
—
翼展
American Crow
99.0 cm
Thick-billed Raven
89.4 cm
体重
American Crow
450.0 g
Thick-billed Raven
1135.0 g
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Song & Call Comparison
American Crow
鸣唱
Classic 'caw-caw-caw' repeated in series. Family groups use distinct dialects. Also gives rattling, knocking, and a short 'cah' flight call. Highly social and vocal.
Thick-billed Raven
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Thick-billed Raven
保护状况
Least Concern
American Crow
Least Concern
Thick-billed Raven
How to Tell Them Apart
American Crow
羽毛
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
喙
Straight, sturdy black bill smaller than a raven's
Thick-billed Raven
About These Birds
American Crow
美洲乌鸦（学名Corvus brachyrhynchos）是北美最常见、最广为人知的智慧鸟类之一。研究表明乌鸦能记住人脸，并在鸟类中表现出最高水平的工具使用能力。体全黑，成群活动。属鸦科（Corvidae），杂食性，高度适应人类环境。