This exhibit has got to be one of the best crane exhibits out there. It appears that they designed the exhibit based on the environment around it which is really nice to see instead of the usual cement pools (or lack of pools) I have seen in most crane exhibits.
This place is half nature reserve, half waterfowl collection (with otters), so was probably designed in part for wildlife, it is also home to a couple of species of duck and done geese (the Mallard in the picture are wild).