I have them in a little rubbermaid tub and it seems to be getting tight. I have 4 chicks and they are supposedly 3 weeks old, so ... how much space per chick do they need at what age? I want to make them something a little bigger, or buy a pet cage, but I want them to be able to stay in it until they go outside to their coop. Would these cages work? http://www.petsmart.com/product/index.jsp?productId=2753342 http://www.petsmart.com/product/index.jsp?productId=3057123 I like this one because it's biggest, and tallest. I caught a baby sitting on top of the feeder today. I think they want to jump and fly. http://www.petsmart.com/product/index.jsp?productId=3074864 Would they LIKE a ramp? Do they get bored? Can they climb up there, or is that a recipe for injury? I'm not handy with building things (I have no woodworking tools) so I'd just as soon buy a cage for them. Plus, I can use a cage if I ever have an injured bird, right?