Barn Owl vs Mallard

Tyto alba 比較対象 Anas platyrhynchos

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Side-by-Side Comparison

属性 Barn Owl Mallard
学名 Tyto alba Anas platyrhynchos
Strigiformes Anseriformes
Tytonidae Anatidae
保全状況 Least Concern Least Concern
体長 35.0 cm (13.8 in) 58.0 cm (22.8 in)
翼開長 90.0 cm (35.4 in) 90.0 cm (35.4 in)
体重 350.0 g (12.35 oz) 1100.0 g (38.80 oz)
食性 Almost exclusively small mammals, especially voles and mice. Hunts using extraordinary hearing to locate prey … Omnivorous — aquatic plants, seeds, insects, crustaceans, and mollusks. Feeds by dabbling, upending, and grazing …
一腹卵数 2-16 4-18
Population Trend
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Size Comparison

Body Length
Barn Owl 35.0 cm
Mallard 58.0 cm
翼開長
Barn Owl 90.0 cm
Mallard 90.0 cm
体重
Barn Owl 350.0 g
Mallard 1100.0 g
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Habitat Comparison

共通生息地

Barn Owl only

Mallard only

None

Barn Owl

Open farmland, grasslands, and marshes. Nests in barns, church steeples, tree cavities, and purpose-built nest boxes.

Mallard

Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.

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Song & Call Comparison

Barn Owl

さえずり

An eerie, drawn-out rasping shriek 'shreeeeee' — not a hoot. Also gives hissing, snoring, and bill-snapping when disturbed. Chicks call with a persistent rasping hunger call.

Mallard

さえずり

Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.

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Geographic Range & Migration

Barn Owl

The most widespread owl and one of the most widespread land birds, found on every continent except Antarctica.

Mallard

Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.

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保全状況

Least Concern

Barn Owl

Least Concern

Mallard

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How to Tell Them Apart

Barn Owl

羽毛

Pale golden-buff upperparts with delicate grey mottling. Pure white heart-shaped face and white to pale buff underparts. Ghostly white appearance in flight.

くちばし

Pale pinkish hooked bill nearly concealed by the facial disc

Mallard

羽毛

Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.

くちばし

Broad, flat bill — yellow-green in males, orange-brown in females

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About These Birds

Barn Owl

メンフクロウはあらゆるフクロウの中で最も非対称な耳を持ち、動物界最高の聴覚的方向定位能力を誇る。完全な暗闇の中でも音だけで獲物を捕まえることができる。特徴的なハート形の顔は放物線状の皿として機能し、ずれた両耳に音を集める。

Mallard

世界で最も一般的なカモ。雄は光沢のある緑色の頭、白い首輪、栗色の胸が特徴。体長50〜65cm。ほぼ世界中の湖、川、池、湿地に生息。雑食性で植物や無脊椎動物を食べる。多くの家禽カモの祖先。低危険種。

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