American Crow vs Eurasian Eagle-Owl
Corvus brachyrhynchos 比較対象 Bubo bubo
Side-by-Side Comparison
| 属性 | American Crow | Eurasian Eagle-Owl |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Bubo bubo |
| 目 | Passeriformes | Strigiformes |
| 科 | Corvidae | Strigidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 68.0 cm (26.8 in) |
| 翼開長 | 99.0 cm (39.0 in) | 170.0 cm (66.9 in) |
| 体重 | 450.0 g (15.87 oz) | 2800.0 g (98.77 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Mammals up to the size of hares and young foxes, and birds up to the … |
| 一腹卵数 | 3-7 | 2-4 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Eurasian Eagle-Owl
Rocky landscapes, cliffs, gorges, and open forest across Eurasia. Increasingly found near human settlements.
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.
Eurasian Eagle-Owl
Powerful, resonant 'ooo-hu' duetting with mate across great distances at dusk. One of Europe's deepest owl calls. Also gives barking screams, hisses, and grunts at the nest.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Eurasian Eagle-Owl
Widespread across Europe, Asia, and North Africa. The most widely distributed eagle-owl.
保全状況
American Crow
Eurasian Eagle-Owl
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
Eurasian Eagle-Owl
Tawny-brown plumage heavily mottled and streaked with black. Large prominent orange eyes and long ear tufts. Streaked breast and barred belly.
Powerful, dark grey-black hooked bill
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。
Eurasian Eagle-Owl
世界最大のフクロウで、4km先まで届く鳴き声と鋭い視力を持つ。ユーラシア全域に生息する頂点捕食者。