Children (12 direct children, 16 direct and indirect children):
Tufted duck
Aythya fuligula
Greater scaup
(tree size 2)
Aythya marila
Common pochard
Pochard, common pochard
Ferruginous duck
White-eyed pochard
Canvasback
Aythya valisineria
Ring-necked duck
Aythya collaris
New zealand scaup
Aythya novaeseelandiae
Redhead
Aythya americana
Baer's pochard
Aythya baeri
Hardhead
(tree size 2)
White-eyed duck
Lesser scaup
Aythya affinis
Madagascar pochard
Aythya innotata