American Crow vs Common Kingfisher
Corvus brachyrhynchos 比較対象 Alcedo atthis
Side-by-Side Comparison
| 属性 | American Crow | Common Kingfisher |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Alcedo atthis |
| 目 | Passeriformes | Coraciiformes |
| 科 | Corvidae | Alcedinidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 17.0 cm (6.7 in) |
| 翼開長 | 99.0 cm (39.0 in) | 25.0 cm (9.8 in) |
| 体重 | 450.0 g (15.87 oz) | 36.0 g (1.27 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Small fish, aquatic insects, and crustaceans. Hunts from a low perch over water, diving headfirst … |
| 一腹卵数 | 3-7 | 3-10 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Common Kingfisher
Clear, slow-flowing rivers, streams, lakes, and ponds with suitable perching and nesting banks. Requires clean water with good fish populations.
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 Kingfisher
A sharp, penetrating 'chee' whistle given in flight, often the first indication of its presence. Short, shrill single note as it darts low over rivers. Contact call is a rippling …
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Common Kingfisher
Widespread across Europe, Asia, and North Africa. Northern populations migrate south in winter.
保全状況
American Crow
Common Kingfisher
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 Kingfisher
Brilliant electric blue upperparts and orange underparts. Blue-green crown with darker barring. White throat patch and cheek spots. A flash of blue in flight.
Long, straight, dagger-like dark bill — orange base on the lower mandible in females
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。
Common Kingfisher
カワセミ（Alcedo atthis）— ユーラシアおよびアフリカに広く分布する鮮やかな青橙色の鳥。川や池のほとりで魚を捕食する。