This is just an "on-display" nestbox for a particular young Kiwi - I believe there are unlabelled Kiwi nest-boxes in most if not all of the enclosures within the Fasanerie.
Yeah TLD is correct - most of the fasanerie exhibit have kiwi in. They aren't signed as there is no realistic chance of seeing them out, but they have 24 hour access to their outdoor exhibit.
This is the exhibit for the youngest kiwi whilst they care for it.
