Ah, that's a possibility as well. I'm afraid (yet unsure, they could have been moved to the free-flight hall, though that would disrupt the South-American theme) that it has now gone behind the scenes.
Either way, it wasn't indicated anywhere on my visit yesterday.
Also notable is that Cologne's pair left for Wuppertal in 2015, meaning that sadly, the only birds of this species in Europe are now off-show.