Redhead

について

中型の潜水ガモ。雄は丸い赤褐色の頭部・黒い胸と後部・灰色の体；雌は褐色。高度な托卵性で他のカモの巣に頻繁に卵を産む。北米全域に分布。大きな湾や沿岸の水域で越冬する。

Physical Description

Measurement	Value	Imperial
翼開長	43.7 cm	17.2 in
体重	1055.0 g	37.21 oz

識別

羽毛

Males have rounded rufous-red head; black breast and undertail; pale gray body. Blue-gray bill with white ring and black tip. Red eye. Females brown with paler face. Rounder head than Canvasback. Dimorphic.

Habitat & Range

Breeds on prairie marshes and potholes in western North America. Winters on large bays, coastal waters, lakes, and reservoirs across the southern United States and Mexico. Large concentrations on Laguna Madre, Texas.

🌿 Wetland 🏖️ Coastal

分布域

Breeds in boreal and temperate North America; winters from southern Canada to northern South America along both coasts.

Diet & Feeding

Dives for molluscs, crustaceans, and aquatic invertebrates in shallow coastal water; hard-shelled benthic prey dominates diet.

保全状況

Least Concern

IUCN Red List

行動と繁殖

営巣

Nest type: HC. Incubation: 23-29 days. Fledging: 56-73 days.

一腹卵数

7-14

鳴き声

さえずり

Male gives a low, mewing may-heah call; female produces a purring, rolled quacking. The mewing, nasal call is unlike any other North American duck; flocks create a cat-like chorus.

分類学

Kingdom	Animalia
Phylum	Chordata
Class	Aves
目	Anseriformes (Waterfowl)
科	Anatidae (Ducks, Geese & Swans)
Genus	Aythya
種	Aythya americana

Distribution

Redhead has been recorded in 8 countries.

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生息あり Not recorded

countries highlighted

🇧🇪 Belgium 🇫🇷 France 🇩🇪 Germany 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom 🇺🇸 United States

External Databases

よくある質問

What does the Redhead eat?

Dives for molluscs, crustaceans, and aquatic invertebrates in shallow coastal water; hard-shelled benthic prey dominates diet.

Where does the Redhead live?

Breeds on prairie marshes and potholes in western North America. Winters on large bays, coastal waters, lakes, and reservoirs across the southern United States and Mexico. Large concentrations on Laguna Madre, Texas.

Is the Redhead endangered?

The Redhead has a conservation status of Least Concern.

How does the Redhead nest?

Nest type: HC. Incubation: 23-29 days. Fledging: 56-73 days.

What does the Redhead sound like?

Male gives a low, mewing may-heah call; female produces a purring, rolled quacking. The mewing, nasal call is unlike any other North American duck; flocks create a cat-like chorus.

How big is the Redhead?

The Redhead has a wingspan of 43.7 cm, weight of 1055.0 g.

What order and family does the Redhead belong to?

The Redhead (Aythya americana) belongs to the order Anseriformes and the family Anatidae.