Anas

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
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
Hawaiian Duck	Anas wyvilliana

comparison of wing and tail configuration¹

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