Extremely rare diving duck that was long thought extinct before being rediscovered in 2006 in a remote site in northern Madagascar. A large duck that is mostly rich brown, with white under the tail. Shows a conspicuous white wing stripe in flight. Males have a pale eye and females a dark one. Lives on freshwater lakes and wetlands. Dives frequently, like a grebe, but is much larger. Lacks the pale face of White-faced Whistling-Duck. Smaller than Meller’s Duck, with darker brown coloration and white under the tail.