Mareca
Wigeons

Trivial name Latin name
Eurasian Wigeon Mareca penelope
Gadwall Mareca strepera
Falcated Duck Mareca falcata
Chiloe Wigeon Mareca sibilatrix
American Wigeon Mareca americana

comparison of wing and tail configuration1

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