Over the summer I want to build a aviary for my pet bird. I want it big enough to hold a african grey, so that way I can buy one later on. Do you guys have any ideas, sugggestions, blueprints, or anything like that? Untill I get an

I will put my

inside of it. How tall/wide should I make it? (P.s. it is going to be inside because I don't trust my dog and my neighboors cats behind out their with it..)
-Thanks