American Crow vs Fan-tailed Raven
Corvus brachyrhynchos 比較対象 Corvus rhipidurus
Side-by-Side Comparison
| 属性 | American Crow | Fan-tailed Raven |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Corvus rhipidurus |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Corvidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | — |
| 翼開長 | 99.0 cm (39.0 in) | 74.6 cm (29.4 in) |
| 体重 | 450.0 g (15.87 oz) | 633.2 g (22.34 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | -- |
| 一腹卵数 | 3-7 | 2-6 |
| Population Trend | — | — |
Size Comparison
Body Length
American Crow
45.0 cm
Fan-tailed Raven
—
翼開長
American Crow
99.0 cm
Fan-tailed Raven
74.6 cm
体重
American Crow
450.0 g
Fan-tailed Raven
633.2 g
Habitat Comparison
共通生息地
None
American Crow only
Fan-tailed Raven only
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.
Fan-tailed Raven
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Fan-tailed Raven
保全状況
Least Concern
American Crow
Least Concern
Fan-tailed 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.
くちばし
Straight, sturdy black bill smaller than a raven's
Fan-tailed Raven
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。