Hardhead
Aythya australis
The Hardhead (Aythya australis) is a species of bird (Aves) in the family Anatidae (Ducks, Geese, and Waterfowl) and order Anseriformes (Ducks).
Observed
Australia
Species in the Genus of Aythya
Baer's Pochard
Aythya baeri
Canvasback
Aythya valisineria
Common Pochard
Aythya ferina
Ferruginous Duck
Aythya nyroca
Greater Scaup
Aythya marila
Hardhead
Aythya australis
Lesser Scaup
Aythya affinis
Madagascar Pochard
Aythya innotata
New Zealand Scaup
Aythya novaeseelandiae
Redhead
Aythya americana
Ring-necked Duck
Aythya collaris
Tufted Duck
Aythya fuligula
