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Ruddy Duck

Oxyura jamaicensis

Least Concern
翼開長
27.9 cm
体重
586.6666666666666 g
Anatidae
Anseriformes
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について

北米で繁殖し、中米・南米北部で越冬する小型の潜水ガモ(体長35〜43cm)。雄の繁殖羽は栗色の体に白い頬、青い嘴が特徴的。Oxyura jamaicensis(ルディダック)は特徴的な扇状の尾羽を立てる姿勢で知られる。北米原産だがヨーロッパに移入・定着し、近縁のフェルギネオウ・ホワイトヘッドダックとの交雑が問題となっている。Anatidae科。

Physical Description

Measurement Value Imperial
翼開長 27.9 cm 11.0 in
体重 586.6666666666666 g 20.69 oz

識別

羽毛

Breeding male has vivid rufous-chestnut body, black crown, white cheeks, and bright sky-blue bill; stiff tail often cocked upright. Female is dull brown with pale cheek crossed by single dark stripe.

Habitat & Range

分布域

Breeds across interior North America from western Canada south to Mexico. Winters on coasts and inland waters south to northern South America.

Diet & Feeding

Dives for aquatic plant seeds, roots, and invertebrates in freshwater marshes. Uses stiff tail as rudder while swimming underwater.

保全状況

Least Concern
IUCN Red List

行動と繁殖

営巣

Nest type: CP. Incubation: 24-26 days. Fledging: 50-55 days.

一腹卵数

5-15

鳴き声

さえずり

Male produces a mechanical, drumming bok-bok-bok staccato beat; female gives a harsh, nasal quack. The male's rapid drum-roll call on the bill during display is startlingly loud and distinctive.

分類学

Kingdom Animalia
Phylum Chordata
Class Aves
Anseriformes (Waterfowl)
Anatidae (Ducks, Geese & Swans)
Genus Oxyura
Oxyura jamaicensis

Distribution

Ruddy Duck has been recorded in 27 countries.

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生息あり Not recorded
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countries highlighted

External Databases

よくある質問

What does the Ruddy Duck eat?
Dives for aquatic plant seeds, roots, and invertebrates in freshwater marshes. Uses stiff tail as rudder while swimming underwater.
Where does the Ruddy Duck live?
Breeds across interior North America from western Canada south to Mexico. Winters on coasts and inland waters south to northern South America.
Is the Ruddy Duck endangered?
The Ruddy Duck has a conservation status of Least Concern.
How does the Ruddy Duck nest?
Nest type: CP. Incubation: 24-26 days. Fledging: 50-55 days.
What does the Ruddy Duck sound like?
Male produces a mechanical, drumming bok-bok-bok staccato beat; female gives a harsh, nasal quack. The male's rapid drum-roll call on the bill during display is startlingly loud and distinctive.
How big is the Ruddy Duck?
The Ruddy Duck has a wingspan of 27.9 cm, weight of 586.6666666666666 g.
What order and family does the Ruddy Duck belong to?
The Ruddy Duck (Oxyura jamaicensis) belongs to the order Anseriformes and the family Anatidae.

Similar Birds

Other species in the Anatidae family

比較

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