American Crow vs Common Kestrel
Corvus brachyrhynchos 对比 Falco tinnunculus
Side-by-Side Comparison
| 属性 | American Crow | Common Kestrel |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Falco tinnunculus |
| 目 | Passeriformes | Falconiformes |
| 科 | Corvidae | Falconidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 45.0 cm (17.7 in) | 34.0 cm (13.4 in) |
| 翼展 | 99.0 cm (39.0 in) | 74.0 cm (29.1 in) |
| 体重 | 450.0 g (15.87 oz) | 190.0 g (6.70 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Primarily voles and mice, also lizards, large insects, and small birds. Hunts by hovering at … |
| 产卵数 | 3-7 | 1-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Common Kestrel
Open country including farmland, grasslands, moorland, and urban areas. Common along motorways and in cities across Europe.
Song & Call Comparison
American Crow
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.
Common Kestrel
A shrill, repeated 'kee-kee-kee-kee' or 'kik-ik-ik', especially near nest. Alarm call is a nasal chattering. Generally less vocal than larger falcons. Calls ring clearly in open country.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Common Kestrel
Europe, Asia, and Africa. One of the most common and widespread raptors in the Old World.
保护状况
American Crow
Common Kestrel
How to Tell Them Apart
American Crow
All black with a slight glossy sheen. Squared-off tail and smooth throat distinguish it from the common raven.
Straight, sturdy black bill smaller than a raven's
Common Kestrel
Males have a blue-grey head and tail with a rufous back spotted with black. Females are rufous-brown with heavy barring. Both have a dark moustachial stripe.
Short, hooked grey bill with a yellow cere
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。
Common Kestrel
红隼（Falco tinnunculus）— 广泛分布于欧洲、亚洲和非洲的小型隼。以悬停空中寻觅地面猎物的行为为特征。