I think they're actually quite rare in Australian zoos too. I've only seen them at 2 zoos here. The Kyabram Fauna Park have a pair and bred them a few years ago and Healesville Sanctuary had one quite a few years ago that was in an unlabeled aviary near the wetlands area. Are there many more? From what I've seen they're quite tough on any aviary they're in because they scratch up any topsoil and plants.