So cute! Where are you keeping yours now? Mine stay in the garage in a big run then get let out into one of the chicken yards when the weather permits. Yours are a bit older than mine though.
Mine are in a 16 x 8 pen with flight netting over the top and a dog house to sleep in. When it gets really cold I take them in the chick barn where I have a play pen fence set up.... I take them out often to run the yard and run they do.....