This Whistling Duck (sometimes referred to as Tree Ducks)is native to the equatorial South Pacific from the Philippines to New Guinea. The plumage of male and females are similar though the female is slightly larger. Whistling ducks are very social birds except during the breeding season and can be found in very large flocks.
Scientists think that their long legs were adapted initially to help them nest in trees. However now they no longer does this preferring to nest on the ground hidden in vegetation.