American Crow vs Small Crow
Corvus brachyrhynchos 比較対象 Corvus samarensis
Side-by-Side Comparison
| 属性 | American Crow | Small Crow |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Corvus samarensis |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Least Concern | Not Evaluated |
| 体長 | 45.0 cm (17.7 in) | — |
| 翼開長 | 99.0 cm (39.0 in) | — |
| 体重 | 450.0 g (15.87 oz) | 231.1 g (8.15 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | -- |
| 一腹卵数 | 3-7 | 2 |
| Population Trend | — | — |
Size Comparison
Body Length
American Crow
45.0 cm
Small Crow
—
翼開長
American Crow
99.0 cm
Small Crow
—
体重
American Crow
450.0 g
Small Crow
231.1 g
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Song & Call Comparison
American Crow
さえずり
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.
Small Crow
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Small Crow
保全状況
Least Concern
American Crow
Not Evaluated
Small Crow
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.
くちばし
Straight, sturdy black bill smaller than a raven's
Small Crow
About These Birds
American Crow
北米全域に広く分布する大型のカラス（体長40〜53cm）。全身光沢のある黒で、知性が高く強い社会性を持つ。Corvus brachyrhynchos（アメリカガラス）は北米で最もよく見られるカラスで、交通量の多い道路に堅い木の実を置いて車に割らせる「道具使用」が観察されている。Corvidae科。