Plenty of Purple Swamphens (Porphyrio porphyrio) in many parts of Australia. And - as Pukeko - in New Zealand. But there's just been this one in Tyto for months. Doesn't show itself every day, and rarely so close to the hide (above).
Elsewhere, found this bird daintily stripping seeds from roadside grasses close to a pair of small lagoons surrounded by sugar cane. Sorry about the tight full frame image: bird wouldn't move far enough away from the car!
Click pix to enlarge