白头海雕 vs 留島鷂

Haliaeetus leucocephalus 对比 Circus maillardi

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Side-by-Side Comparison

属性 白头海雕 留島鷂
学名 Haliaeetus leucocephalus Circus maillardi
Accipitriformes Accipitriformes
Accipitridae Accipitridae
保护状况 Least Concern Endangered
体长 79.0 cm (31.1 in)
翼展 203.0 cm (79.9 in) 70.6 cm (27.8 in)
体重 4300.0 g (151.68 oz) 573.0 g (20.21 oz)
食性 Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … --
产卵数 1-4 2-6
Population Trend
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Size Comparison

Body Length
白头海雕 79.0 cm
留島鷂
翼展
白头海雕 203.0 cm
留島鷂 70.6 cm
体重
白头海雕 4300.0 g
留島鷂 573.0 g
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Habitat Comparison

共同栖息地

白头海雕 only

留島鷂 only

白头海雕

Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.

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Song & Call Comparison

白头海雕

鸣唱

High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.

留島鷂

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Geographic Range & Migration

白头海雕

North America from Alaska and Canada through the contiguous United States to northern Mexico.

留島鷂

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保护状况

Least Concern

白头海雕

Endangered

留島鷂

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How to Tell Them Apart

白头海雕

羽毛

Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.

Large, hooked, bright yellow bill

留島鷂

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About These Birds

白头海雕

The bald eagle is the national bird and symbol of the United States. Once endangered due to DDT pesticide use, it made a remarkable recovery and was removed from the endangered species list in 2007. These powerful raptors build the largest tree nests of any bird, some weighing over two tons.

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