Excellent concept. Wouldn't work with geese, though. Too big, too aggressive.
I wouldn't propose it for them. Right now, I'm a little concerned about the aviary above the library.
We have to spend an inordinate amount of time and energy keeping the library skylights clean. If we had to work as hard on the whole dome, everyone inside would be assigned to cleaning windows!
I'm beginning to think it was a mistake to stack them like that. Oh, well. I guess I'm not perfect.