Canvasback

について

キャンバスバックは北米に分布する大型の潜水性カモです。雄は鮮やかな赤褐色の頭部と赤い目、白い体が特徴的です。内陸の湖や湿地に繁殖し、冬季には湾岸や大きな湖に集まります。イモチウキゴモ（Vallisneria）の塊茎を好んで潜って採食します。

Physical Description

Measurement	Value	Imperial
翼開長	44.7 cm	17.6 in
体重	1223.25 g	43.15 oz

識別

羽毛

Males have rich chestnut-red head and neck; black breast; pale canvas-gray body; white flanks. Sloping forehead profile with dark red bill and red eye. Females gray-brown with reddish-brown head. Dimorphic diving duck.

Habitat & Range

Breeds on prairie potholes and boreal lakes across western North America. Winters on large open lakes, reservoirs, estuaries, and Chesapeake Bay. Sensitive to loss of prairie wetlands.

🌿 Wetland 🏖️ Coastal

分布域

Breeds in wooded wetlands of Canada and the northern United States; winters in the southern US and Central America.

Diet & Feeding

Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet dominated by invertebrates.

保全状況

Least Concern

IUCN Red List

行動と繁殖

営巣

Nest type: PL. Incubation: 23-29 days. Fledging: 63-77 days.

一腹卵数

2-16

鳴き声

さえずり

Male produces a low, cooing purr; female gives a harsh, rolling quacking series. Males whisper-call in rolling, cooing notes during courtship; female's harsh quacking is emphatic on North American marshes.

分類学

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

Distribution

Canvasback has been recorded in 8 countries.

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生息あり Not recorded

countries highlighted

🇹🇼 Taiwan 🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇬🇧 United Kingdom 🇺🇸 United States

External Databases

よくある質問

What does the Canvasback eat?

Eats molluscs, crustaceans, and aquatic invertebrates; dives in coastal and freshwater habitats; diet dominated by invertebrates.

Where does the Canvasback live?

Breeds on prairie potholes and boreal lakes across western North America. Winters on large open lakes, reservoirs, estuaries, and Chesapeake Bay. Sensitive to loss of prairie wetlands.

Is the Canvasback endangered?

The Canvasback has a conservation status of Least Concern.

How does the Canvasback nest?

Nest type: PL. Incubation: 23-29 days. Fledging: 63-77 days.

What does the Canvasback sound like?

Male produces a low, cooing purr; female gives a harsh, rolling quacking series. Males whisper-call in rolling, cooing notes during courtship; female's harsh quacking is emphatic on North American marshes.

How big is the Canvasback?

The Canvasback has a wingspan of 44.7 cm, weight of 1223.25 g.

What order and family does the Canvasback belong to?

The Canvasback (Aythya valisineria) belongs to the order Anseriformes and the family Anatidae.