Wandering Whistling Duck Wandering Whistling-duck - Dendrocygna arcuata by melanie · Photographed September 20, 2017 at Sanctuary Lakes Resort· We saw a group of gorgeous Whistling Ducks, all sitting perfectly posed for photos, while we were staying at Sanctuary Lakes. Wandering Whistling Ducks, Sanctuary Lakes Resort, Urangan. 20 September 2017. Share