I think I am on the right track - but all suggestions will be appreciated. We have added three new chics this year. One leg horn and two brahmas. They are 5 wks old. I added a make shift little run on the outside of the existing coop. The new chicks spend their days there if the weather if above 65. Sometime we have the chics go inside the run if the older girls are outside free range. I am still uncertain when I can have the three little ones in the run and coop together. I am not sure they are fully feathered and some nights still get chilly. (it's No. Michigan...what more can I say.) Today I had the all in the run together and all was fine. Any suggestions I would appreciate.