White-backed Duck and whistling ducks

White-backed Duck Thalassornis leuconotus

Plumed Whistling Duck Dendrocygna eytoni

White-faced Whistling Duck Dendrocygna viduata

Black-bellied Whistling Duck Dendrocygna autumnalis

West Indian Whistling Duck Dendrocygna arnorea

Hybrid: White-faced Whistling Duck Dendrocygna viduata x West Indian Whistling Duck Dendrocygna arnorea

Fulvous Whistling Duck Dendrocygna bicolor

Hybrid: White-faced Whistling Duck Dendrocygna viduata x Fulvous Whistling Duck Dendrocygna bicolor