Cats in a nest - adorable! Is this some kind of off-exhibit area , as being so close to the glass must be a source of stress if many visitors are passing in front? Small & medium cats are a great hit with visitors if attractively exhibited , and are one of the more economical and trouble-free species if they are logically selected.By logical selection , I mean for example not keeping black-footed cats in a damp climate (notoriously susceptible to lung problems if not kept in a low-humidity exhibit).