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Side-by-Side Comparison

属性	白头海雕	Black-collared Hawk
学名	Haliaeetus leucocephalus	Busarellus nigricollis
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)	78.7 cm (31.0 in)
体重	4300.0 g (151.68 oz)	926.0 g (32.66 oz)
食性	Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish …	--
产卵数	1-4	1-2
Population Trend	—	—

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Size Comparison

Body Length

白头海雕 79.0 cm

Black-collared Hawk —

翼展

白头海雕 203.0 cm

Black-collared Hawk 78.7 cm

体重

白头海雕 4300.0 g

Black-collared Hawk 926.0 g

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Habitat Comparison

共同栖息地

🌲 Forest 🌿 Wetland

白头海雕 only

🌾 Grassland 🏖️ Coastal

Black-collared Hawk 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.

Black-collared Hawk

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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.

Black-collared Hawk

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保护状况

Least Concern

白头海雕

Least Concern

Black-collared Hawk

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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

Black-collared Hawk

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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.

Black-collared Hawk

黑颈鸢，分布于中南美洲湿地，白色头部、栗棕色身体配黑色颈环，以鱼为主食。

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Related Comparisons

白头海雕 vs 兀鹫

same-family

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