I started out with a cardboard box, but after a day I updated to a storage tub I had laying around the house. Then a week and a half later I realize these chicks are a lot more active than a imagined (this is my first time w/ chickens) I added a second tub, and a breezeway inbetween them. Also had to build a second screen to cover them. As soon as I take the cover off one of them flies to the top to hang out. I only got them on the 6th, can't wait until they can go outside!