Dendrocygninae

Dendrocygninae is a subfamily of the duck, goose and swan family of birds, Anatidae. It contains only one genus, Dendrocygna, containing eight species. These species are the whistling ducks and they have a worldwide distribution through the tropics and subtropics. These ducks have, as their name implies, distinctive whistling calls.

The whistling ducks have long legs and necks, and are very gregarious, flying to and from night-time roosts in large flocks. Both sexes have the same plumage, and all have a hunched appearance and black underwings in flight.