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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Giới Thiệu
A medium-sized diving duck. Males have rich chestnut-brown body, white eye, and blue-grey bill; females are similar but duller. Australia's only widespread diving duck. Nomadic; follows inland flooding. Forms large rafts on deep lakes.
Physical Description
| Measurement | Value | Imperial |
|---|---|---|
| Chiều Dài Sải Cánh | 42,7 cm | 16.8 in |
| Khối Lượng | 803,75 g | 28.35 oz |
Nhận Dạng
Bộ Lông
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.
Tình Trạng Bảo Tồn
Hành Vi & Sinh Sản
Làm Tổ
Nest type: PL. Incubation: 25-32 days.
Số Trứng
6-18
Âm Thanh
Tiếng Hót
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.
Phân Loại Học
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Bộ | Anseriformes (Waterfowl) |
| Họ | Anatidae (Ducks, Geese & Swans) |
| Genus | Aythya |
| Loài | Aythya australis |
Distribution
Hardhead has been recorded in 5 countries.
countries highlighted
External Databases
Câu Hỏi Thường Gặp
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