Hi.my name I Tracy and we got 8 Wyandotte chicks in early March, ever since we put them in the coop, its been chaos. We are Down to 4 because they would not go in at night. We now have a run for them so they can come out of the coop and roam a little, safely. My question is, when do we dare let them roam free? We do have a light in the coop. Any suggestions?