American Crow vs Northern Nutcracker

Corvus brachyrhynchos 对比 Nucifraga caryocatactes

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Side-by-Side Comparison

属性 American Crow Northern Nutcracker
学名 Corvus brachyrhynchos Nucifraga caryocatactes
Passeriformes Passeriformes
Corvidae Corvidae
保护状况 Least Concern Least Concern
体长 45.0 cm (17.7 in)
翼展 99.0 cm (39.0 in) 36.6 cm (14.4 in)
体重 450.0 g (15.87 oz) 172.33333333333334 g (6.08 oz)
食性 Highly omnivorous — insects, earthworms, seeds, fruit, eggs, nestlings, carrion, and human food waste. Among … --
产卵数 3-7 2-5
Population Trend
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Size Comparison

Body Length
American Crow 45.0 cm
Northern Nutcracker
翼展
American Crow 99.0 cm
Northern Nutcracker 36.6 cm
体重
American Crow 450.0 g
Northern Nutcracker 172.33333333333334 g
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Habitat Comparison

共同栖息地

American Crow only

Northern Nutcracker only

American Crow

Extremely adaptable — found in farmland, open woodland, suburban neighborhoods, parking lots, and urban parks.

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Song & Call Comparison

American Crow

鸣唱

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.

Northern Nutcracker

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Geographic Range & Migration

American Crow

North America from southern Canada through the United States to northern Mexico.

Northern Nutcracker

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保护状况

Least Concern

American Crow

Least Concern

Northern Nutcracker

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How to Tell Them Apart

American Crow

羽毛

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

Northern Nutcracker

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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。

Northern Nutcracker

星鸦(约175克)是一种以坚果(尤其是瑞士石松松果)为主食的鸦科鸟类,分布于欧洲和亚洲的山地针叶林。以其出色的记忆力著称,能够在整个冬季检索数千个藏食点。无危;种群数量随宿主植物结实情况而波动,偶尔大规模游荡。

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Related Comparisons

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