My Cornish cross birds are two weeks old tomorrow and quickly outgrowing their inside cage. Are they like normal chicks and need to stay inside until fully feathered or can I go ahead and put them in the outdoor cage? I have had the heat lamp on them and have slowly been reducing the temp in the cage. I am in Missouri and we are having highs in the 60's and 70's and lows in the lower 50's. They are really stinking the place up and I am ready to move them out of the shop. Thanks for the help.