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Side-by-Side Comparison

属性	白头海雕	白尾鹞
学名	Haliaeetus leucocephalus	Circus cyaneus
目	Accipitriformes	Accipitriformes
科	Accipitridae	Accipitridae
保护状况	Least Concern	Least Concern
体长	79.0 cm (31.1 in)	—
翼展	203.0 cm (79.9 in)	70.5 cm (27.8 in)
体重	4300.0 g (151.68 oz)	442.0 g (15.59 oz)
食性	Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish …	--
产卵数	1-4	1-7
Population Trend	—	—

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Size Comparison

Body Length

白头海雕 79.0 cm

白尾鹞 —

翼展

白头海雕 203.0 cm

白尾鹞 70.5 cm

体重

白头海雕 4300.0 g

白尾鹞 442.0 g

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Habitat Comparison

共同栖息地

🌿 Wetland 🌾 Grassland

白头海雕 only

🌲 Forest 🏖️ Coastal

白尾鹞 only

无

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.

白尾鹞

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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.

白尾鹞

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保护状况

Least Concern

白头海雕

Least Concern

白尾鹞

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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.

喙

Large, hooked, bright yellow bill

白尾鹞

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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.

白尾鹞

白尾鹞（约400克）是一种苗条的鹞类，雄鸟为灰白色，雌鸟为棕色，两者均具有白色腰斑。繁殖于北半球开阔生境，以低空飞行、利用听觉定位猎物的捕食方式著称。近危；部分地区因繁殖栖息地丧失而数量下降，尤以英国为甚。

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Related Comparisons

白头海雕 vs 兀鹫

same-family

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