The Lesser Javan Whistling Duck (Dendrocygna javanica) is the smallest whistling duck, named for its loud two-note call. These sociable birds roost in flocks during the day and are notable for perching on trees, sometimes nesting in tree hollows. They have a wide range across Southeast Asia and the Indian subcontinent and are omnivores, consuming plants, grains, insects, snails, and frogs.
