Indeed; this is one of the oddest exhibits I’ve seen! It looks more like an enclosure for some kind of small primate, maybe? @Therabu, do you know if this enclosure was built for boobies? It would be quite strange if it was.
@Gibbonsagainstgravity no idea of what it was build for initially but primates would escape from there. It looks more like a old meerkat or porcupine enclosure