I am pretty excited that my scheme to keep Peanut from climbing onto the roof of the Finsterium has worked!

He's tried to climb up three times now, all unsuccessful. When he realizes he can't reach the top, he climbs down a little and shakes his head back and forth. I think he is actually rubbing his beak along the mesh, although it's a little hard to tell. This seems to be a territorial behavior. He also shakes his head this way when he's near the Finsters.