I should stress that this isn't the main AWD exhibit - just a holding area (seemed to have single animal - spare male? - when I was there). There is a much larger, wooded paddock behind the left hand fence for the main group (and a second group in a another large paddock near the Reptile House).
Yes, sorry, this was just a holding area with the single animal. We didn't see any in the large enclosure next to this one, but it is much better suited to a small group of AWDs.
This photo shows part of the other enclosure:
