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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À propos
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 |
|---|---|---|
| Envergure | 42,7 cm | 16.8 in |
| Poids | 803,75 g | 28.35 oz |
Identification
Plumage
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.
Statut de conservation
Comportement et reproduction
Nidification
Nest type: PL. Incubation: 25-32 days.
Taille de la couvée
6-18
Son
Chant
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.
Taxonomie
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Aves |
| Ordre | Anseriformes (Waterfowl) |
| Famille | Anatidae (Ducks, Geese & Swans) |
| Genus | Aythya |
| Espèces | Aythya australis |
Distribution
Hardhead has been recorded in 5 countries.
countries highlighted
External Databases
Foire aux questions
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Similar Birds
Other species in the Anatidae family