American Crow vs House Sparrow
Corvus brachyrhynchos 对比 Passer domesticus
Side-by-Side Comparison
| 属性 | American Crow | House Sparrow |
|---|---|---|
| 学名 | Corvus brachyrhynchos | Passer domesticus |
| 目 | Passeriformes | Passeriformes |
| 科 | Corvidae | Passeridae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | 45.0 cm (17.7 in) | 16.0 cm (6.3 in) |
| 翼展 | 99.0 cm (39.0 in) | 25.0 cm (9.8 in) |
| 体重 | 450.0 g (15.87 oz) | 30.0 g (1.06 oz) |
| 食性 | Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … | Primarily seeds and grains, supplemented with insects during breeding season. Readily exploits human food scraps … |
| 产卵数 | 3-7 | 1-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
American Crow
Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.
House Sparrow
Closely associated with human habitation. Found in cities, towns, farms, and any built environment. Rarely found far from people.
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.
House Sparrow
Monotonous series of chirping 'cheep' and 'chirrup' notes. Male gives 'chilp' song repeatedly. Flocks produce constant chirping chatter. No melodic song; purely functional calls.
Geographic Range & Migration
American Crow
North America from southern Canada through the United States to northern Mexico.
House Sparrow
Native to Europe, Asia, and North Africa. Introduced to every continent except Antarctica, making it the most widely distributed wild bird.
保护状况
American Crow
House Sparrow
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
House Sparrow
Males have grey crowns, chestnut napes, black bibs, and streaked brown backs. Females and juveniles are plain buffy-brown with a pale eyebrow stripe.
Short, stout, conical bill — black in breeding males, yellowish in non-breeding
About These Birds
American Crow
美洲乌鸦（学名Corvus brachyrhynchos）是北美最常见、最广为人知的智慧鸟类之一。研究表明乌鸦能记住人脸，并在鸟类中表现出最高水平的工具使用能力。体全黑，成群活动。属鸦科（Corvidae），杂食性，高度适应人类环境。
House Sparrow
家麻雀是全球分布最广的鸟类之一，与人类关系极为密切。雄鸟头顶灰色，喉部黑色，翅具栗色。广泛分布于城市、农村和郊区，以谷物、种子和昆虫为食。因人类扩张而随之传播至世界各地，但近年来在某些地区种群下降明显。