Movin' chicks to coop

[TheChickMan]

I have 8 41/2 week old chicks and a duck. The brooder is getting pretty small for them and was wondering if I could set them out in the coop early. Missouri weather is crazy right now, we had frost where I am at this morning and they are forcasting high 70's for the weekend. The chicks don't sleep in the coop they sleep on the ground underneath the coop with the duck. Will it get to cold for them overnite. I have let them run around during the day in 65 degree weather but not stay overnite in it. I can't move the heatlamp out to the brooder so that is out of the question. Any help is greatly appreciated.

 

[BuffOrpington88]

It would probably be a good idea to let them out during the day, and them bring them in at night for the first couple days. Make sure they have all of their adult feathers before they go outside in the frost.