Sign about the new primate house being constructed. Not sure what this was before, but on the on-site map it is represented by a gibbon silhouette (do/did they keep gibbons?) and it's exhibit #8 here. The sign states that all the zoos small primates will be moved here in the near future.
@FunkyGibbon Indeed, though from looks it appears as though it's been left sitting empty for a good few years now. I look forward to seeing what they do here.