Thanks for posting a load of photos from Cleland, as I have fond memories from my visit in 2007. This particular aviary was perhaps my favourite, but it is a tough decision as the wildlife park has an impressive number of bird species in a variety of aviaries. One thing that I recall is that there were potoroos absolutely everywhere, roaming wild and attempting to obtain food by any means necessary.
I was really very impressed with Cleland. Everything is well built, the aviaries look great and the free-ranging potoroos were a surprise. And something different.