I have five one-month-old chicks which I'm currently raising in a large cardboard box in my spare bedroom inside my house; my question is, when can I put them in the coop outside with my other chickens? The coop outside consists of a fenced-in area and a small shed which is used as a hen house and a place for the chickens to roost. I have six full grown hens; one new hampshire red, two red stars, one buttercup, one blue andalusian and one golden lakenvelder. The five chicks consist of one buff orpington, one silver sebright, one golden sebright and two blue andalusians. I'm concerned about putting them in with the other chickens outside because they're still so small compared to the outdoor chickens and I don't want them to be bullied or pecked, but the longer I wait for them to grow, the closer to winter it gets and the colder it gets outside. Which brings me to my next concern...I live in Maine and it's already sinking into the low 30s (Fahrenheit) during the night and rarely gets above 55 - 60 during the day this time of year, and after a month of a warm indoor guest bedroom with a heat lamp, I'm afraid that the sudden drastic change in temperature might harm them. So, could I get some input? Any advice or suggestions? Thanks!