European Robin vs Great Horned Owl

Erithacus rubecula 比較対象 Bubo virginianus

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Side-by-Side Comparison

属性 European Robin Great Horned Owl
学名 Erithacus rubecula Bubo virginianus
Passeriformes Strigiformes
Muscicapidae Strigidae
保全状況 Least Concern Least Concern
体長 14.0 cm (5.5 in) 55.0 cm (21.7 in)
翼開長 21.0 cm (8.3 in) 127.0 cm (50.0 in)
体重 18.0 g (0.63 oz) 1400.0 g (49.38 oz)
食性 Insects, worms, and berries. Often follows gardeners and large animals to catch invertebrates disturbed from … Extremely diverse — mammals (rabbits, skunks, rodents), birds (including other raptors), reptiles, amphibians, and fish. …
一腹卵数 4-7 1-4
Population Trend
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Size Comparison

Body Length
European Robin 14.0 cm
Great Horned Owl 55.0 cm
翼開長
European Robin 21.0 cm
Great Horned Owl 127.0 cm
体重
European Robin 18.0 g
Great Horned Owl 1400.0 g
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Habitat Comparison

共通生息地

European Robin only

None

Great Horned Owl only

European Robin

Woodlands, hedgerows, parks, and gardens across Europe. Remarkably tame around humans, especially in Britain.

Great Horned Owl

Diverse habitats including forests, deserts, swamps, urban parks, and suburban areas. Nests in tree hollows, cliff ledges, and abandoned nests of other large birds.

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Song & Call Comparison

European Robin

さえずり

Exquisite, melancholic melody of thin whistled phrases, rising and falling softly. Rich, warbling song year-round; both sexes sing. Alarm call is a sharp 'tic-tic-tic'.

Great Horned Owl

さえずり

Deep, resonant 'who-who-who-who-ooo': the classic 'hoo-h'HOO-hoo-hoo' territorial duet of a mated pair. Booms at dusk. Female pitch slightly higher than male.

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Geographic Range & Migration

European Robin

Europe, western Asia, and parts of North Africa. Northern populations migrate south in winter; western European populations are largely resident.

Great Horned Owl

North and South America from subarctic Canada to Tierra del Fuego. One of the most widespread owls in the Americas.

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保全状況

Least Concern

European Robin

Least Concern

Great Horned Owl

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How to Tell Them Apart

European Robin

羽毛

Olive-brown upperparts with a warm orange-red breast and face bordered by grey. White belly and undertail coverts.

くちばし

Thin, pointed dark brown bill

Great Horned Owl

羽毛

Mottled grey-brown plumage with heavy dark barring. Prominent ear tufts, yellow eyes, and a white throat patch give a fierce expression.

くちばし

Dark grey-black hooked bill almost hidden by facial disc feathers

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About These Birds

European Robin

イギリスの非公式の国鳥で、縄張り意識が強く、一年中さえずる。民話では鳥の中の特別な地位を持つ。

Great Horned Owl

The great horned owl is the most powerful and widespread owl in the Americas, earning the nickname tiger of the sky. It is one of the earliest nesting birds, often laying eggs in January when snow still covers the ground. Great horned owls are fierce predators, regularly taking prey up to three times their own weight.

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