Hardhead
Aythya australis
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<birdfyi-bird slug="aythya-australis"></birdfyi-bird>The Hardhead (Aythya australis) is a bird species in the family Anatidae (ducks, geese & swans), within the order Anseriformes (waterfowl). Recorded measurements include a wingspan of 42.7 cm and a weight of 803.8 g. The IUCN Red List classifies it as Least Concern.
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について
オーストラリアンホワイトアイはオーストラリアとニュージーランドに分布する潜水性カモです。雄は栗色の頭部と赤い目が特徴的です。水草が豊富な深い湿地や湖に生息し、水に潜って水草の塊茎や根を採食します。オーストラリアでは比較的普通に見られる種です。
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| 翼開長 | 42.7 cm | 16.8 in |
| 体重 | 803.75 g | 28.35 oz |
識別
羽毛
Males dark chocolate-brown with white undertail and flanks. White eye conspicuous. Blue-gray bill with white band and black tip. Females similar but brown with brown eye. Bold white wing stripe in flight. Australian endemic.
Habitat & Range
Deep freshwater lakes, rivers, and reservoirs across Australia and New Guinea. Nomadic in Australia, following seasonal inland flooding. Prefers deep water with submerged aquatic plants.
保全状況
行動と繁殖
営巣
Nest type: PL. Incubation: 25-32 days.
一腹卵数
6-18
鳴き声
さえずり
Male produces a deep, purring wheeze; female gives a grating quacking series. Calls closely resemble Common Pochard; the female's harsh notes carry far across Australian freshwater lakes.
分類学
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| 目 | Anseriformes (Waterfowl) |
| 科 | Anatidae (Ducks, Geese & Swans) |
| Genus | Aythya |
| 種 | Aythya australis |
Distribution
Hardhead has been recorded in 5 countries.
countries highlighted
External Databases
よくある質問
Where does the Hardhead live?
Is the Hardhead endangered?
How does the Hardhead nest?
What does the Hardhead sound like?
How big is the Hardhead?
What order and family does the Hardhead belong to?
Similar Birds
Other species in the Anatidae family