ハクトウワシ vs Hawfinch

Haliaeetus leucocephalus 比較対象 Coccothraustes coccothraustes

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Side-by-Side Comparison

属性 ハクトウワシ Hawfinch
学名 Haliaeetus leucocephalus Coccothraustes coccothraustes
Accipitriformes Passeriformes
Accipitridae Fringillidae
保全状況 Least Concern Least Concern
体長 79.0 cm (31.1 in) 18.0 cm (7.1 in)
翼開長 203.0 cm (79.9 in) 32.0 cm (12.6 in)
体重 4300.0 g (151.68 oz) 55.0 g (1.94 oz)
食性 Primarily fish, also waterfowl, small mammals, and carrion. Hunts by swooping down to snatch fish … Seeds and kernels, especially from cherries, olives, elms, and hornbeams. The bill exerts a force …
一腹卵数 1-4 3-5
Population Trend
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Size Comparison

Body Length
ハクトウワシ 79.0 cm
Hawfinch 18.0 cm
翼開長
ハクトウワシ 203.0 cm
Hawfinch 32.0 cm
体重
ハクトウワシ 4300.0 g
Hawfinch 55.0 g
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Habitat Comparison

共通生息地

ハクトウワシ only

Hawfinch only

None

ハクトウワシ

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

Hawfinch

Deciduous and mixed woodland, orchards, parks, and large gardens with mature fruiting trees.

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Song & Call Comparison

ハクトウワシ

さえずり

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.

Hawfinch

さえずり

A sharp, metallic 'tsick' call — the primary vocalization and often all that's heard. Song is a thin, reedy warble. Generally inconspicuous vocally despite its striking appearance.

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Geographic Range & Migration

ハクトウワシ

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

Hawfinch

Europe, North Africa, and western and central Asia. Partially migratory, with northern populations moving south in winter.

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保全状況

Least Concern

ハクトウワシ

Least Concern

Hawfinch

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How to Tell Them Apart

ハクトウワシ

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.

くちばし

Large, hooked, bright yellow bill

Hawfinch

羽毛

Orange-brown head with a black bib and eye stripe. Warm brown back, grey nape, and broad white wing bar. Massive head and bill give a top-heavy appearance.

くちばし

Enormously powerful, conical, pale bill capable of cracking cherry and olive stones

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About These Birds

ハクトウワシ

ハクトウワシはアメリカ合衆国の国鳥で国の象徴である。DDT農薬使用により一度は絶滅の危機に瀕したが、見事な回復を遂げ、2007年に絶滅危惧種リストから外された。これらの力強い猛禽類は、2トンを超えるものもある鳥類最大の木の巣を作る。

Hawfinch

シメはヨーロッパの鳥の中で体の大きさに対して最も強力なくちばしを持ち、27〜43 kgの力でサクランボの種を割ることができる。その特徴的な外見にもかかわらず、著名なほど恥ずかしがり屋で観察が難しい。種割り時に発生する巨大な力を吸収するための頭骨の特殊な適応を持つ。

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