American Crow vs Belted Kingfisher
Corvus brachyrhynchos 比較対象 Megaceryle alcyon
Side-by-Side Comparison
| 属性 | American Crow | Belted Kingfisher |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Megaceryle alcyon |
| 目 | Passeriformes | Coraciiformes |
| 科 | Corvidae | Alcedinidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 33.0 cm (13.0 in) |
| 翼開長 | 99.0 cm (39.0 in) | 53.0 cm (20.9 in) |
| 体重 | 450.0 g (15.87 oz) | 150.0 g (5.29 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Primarily small fish caught by plunge-diving from a perch or hover. Also takes crayfish, frogs, … |
| 一腹卵数 | 3-7 | 6-7 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Belted Kingfisher
Rivers, streams, lakes, ponds, estuaries, and coastlines with clear water and suitable perches. Nests in burrows dug into earthen banks.
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.
Belted Kingfisher
A loud, rattling 'klee-klee-klee-klee' — mechanical and penetrating. Given in flight along rivers. Also a harsh 'kekekek' near nest. Far louder than Common Kingfisher.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Belted Kingfisher
North America from Alaska and Canada to Central America and the Caribbean. Northern populations migrate south in winter.
保全状況
American Crow
Belted 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
Belted Kingfisher
Blue-grey upperparts with a shaggy crest and a white collar. Males have a single blue-grey breast band; females have an additional rufous belly band.
Long, heavy, straight, dark dagger-like 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。
Belted Kingfisher
ミヤマカワセミは雌の方が雄よりも派手な色彩を持つという点でユニークで、赤褐色の腹帯が余分に加わっている。これらの騒々しい鳥は独特のガラガラとした鳴き声で縄張りを宣言する。重厚な嘴を使って河岸に最大2.4mもの深さの営巣穴を掘る。