American Crow vs Common Nightingale
Corvus brachyrhynchos 比較対象 Luscinia megarhynchos
Side-by-Side Comparison
| 属性 | American Crow | Common Nightingale |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Luscinia megarhynchos |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Muscicapidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | 45.0 cm (17.7 in) | 16.5 cm (6.5 in) |
| 翼開長 | 99.0 cm (39.0 in) | 25.0 cm (9.8 in) |
| 体重 | 450.0 g (15.87 oz) | 21.0 g (0.74 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Insects and larvae, supplemented with berries in autumn. Forages on or near the ground in … |
| 一腹卵数 | 3-7 | 4-5 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
Common Nightingale
Dense thickets, scrub, and undergrowth in deciduous woodland. Prefers areas with thick ground cover near water.
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 Nightingale
Considered Europe's finest songster: an extraordinarily rich, loud, flute-like melody of bubbling trills, slow whistles, and a distinctive crescendo 'lu-lu-lu'. Sings day and night.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
Common Nightingale
Breeds in Europe and western Asia. Winters in sub-Saharan Africa. A long-distance migrant crossing the Sahara.
保全状況
American Crow
Common Nightingale
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 Nightingale
Plain warm brown upperparts with a rufous-chestnut tail. Pale greyish-white underparts. Unremarkable appearance belies its remarkable voice.
Thin, pointed, dark brown 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。
Common Nightingale
サヨナキドリ（Luscinia megarhynchos）— ヨーロッパ・中央アジアに分布し、アフリカで越冬する。夜間にも聴こえる複雑で豊かな歌声で知られる。