I have 6 silkies 3 chicks with mamma and 2 teens. They are all in a huge dog kennel on my back porch while I was building a new coop for them. Our temps are due to drop to around 40 at night. 1 Can I move them all outside at one time or should I move the teens and let the chicks get bigger they are not fully feathered yet and will not have extra heat at night. 2 Is ther anything special I need to do for them before I move them?