The cotton pygmy goose is also known as the Indian pygmy goose or cotton teal (Nettapus coromandelianus). Small individuals of this species are the smallest waterfowl on earth. In spite of their name, these birds are true ducks. They are found throughout tropical Asia and also occur locally in northeastern Australia The male has a white head, neck and underparts, dark glossy green upperparts and a narrow dark breast band. Females are duskier and have a dark stripe through the eye and a white eyebrow. There are two recognised subspecies.