LOL - Dayo opens his everytime I take a bowl out, then does somersaults through the ring the bowl sits in. One note on the bowl rings, they are 4 inches in diameter and their is no chance of Dayo getting stuck. A macaw would, but not a Grey.
I have forgotten once or twice to place the bowl back in and he's back out and flying in no time finding us....
These birds are just too smart sometimes for their own god.