Trivial name Latin name
Mallard Anas platyrhynchos
Northern Pintail Anas acuta
Common Teal Anas crecca
Andean Tea Anas flavirostris
White-cheeked pintail Anas bahamensis
Garganey Anas querquedula
Eastern Spot-billed Duck Anas zonorhyncha
Hottentot Teal Anas hottentota
Grey Teal Anas gracilis
Spot-billed Duck Anas poecilorhyncha
Meller's Duck Anas melleri
Cinnamon Teal Anas cyanoptera
Pacific Black Duck Anas superciliosa
Philippine Duck Anas luzonica
Chestnut Teal Anas castanea
Cape Teal Anas capensis
African Black Duck Anas sparsa

comparison of wing and tail configuration1

1 According to Hartmann (2000a, 2000b and 2016)