S
WAnatinae
WAndean crested duckA
WBaikal teal
WBambolinettaB
WBrazilian teal
WBronze-winged duckC
WCrested duck
WHartlaub's duckD
WMalacorhynchus
WMarbled duckE
WMoa-nalo
WMaui Nui large-billed moa-naloF
WOʻahu moa-nalo
WPatagonian crested duck