American Crow vs Peregrine Falcon
Corvus brachyrhynchos 比較対象 Falco peregrinus
Side-by-Side Comparison
| 属性 | American Crow | Peregrine Falcon |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Falco peregrinus |
| 目 | Passeriformes | Falconiformes |
| 科 | Corvidae | Falconidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 43.0 cm (16.9 in) |
| 翼開長 | 99.0 cm (39.0 in) | 104.0 cm (40.9 in) |
| 体重 | 450.0 g (15.87 oz) | 750.0 g (26.46 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Almost exclusively medium-sized birds caught in flight, including pigeons, doves, waterfowl, and songbirds. Hunts with … |
| 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.
Peregrine Falcon
Diverse habitats from tundra to tropics, typically near cliffs or tall structures. Increasingly found in cities nesting on skyscrapers and bridges.
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.
Peregrine Falcon
A harsh, wailing 'kak-kak-kak-kak' repeated rapidly in defense of the nest. Alarm call is a long screaming 'raaak'. Mostly silent away from breeding sites.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Peregrine Falcon
One of the most widespread birds, found on every continent except Antarctica. Migratory populations travel vast distances between breeding and wintering grounds.
保全状況
American Crow
Peregrine Falcon
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
Peregrine Falcon
Blue-grey upperparts with barred white underparts. A distinctive black moustachial stripe contrasts with the white throat and cheeks.
Short, notched blue-grey bill with a yellow cere
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。
Peregrine Falcon
世界最速の動物として知られるハヤブサで、急降下時には時速320キロメートルを超えることがある。南極を除く全大陸に生息し、都市部での繁殖も増加している。