I have chicks that are fully feathered out, they will be 5 weeks old this Monday. The brooder is on an unheated uninsulated enclosed porch with a heat lamp. I have the heat lamp keep one corner of the brooder at about 72 degrees. I have read that I can take off the supplemental heat at 5 weeks. However I am in the pacific north west the ambient temp on the porch is about 60 degrees the outside night temps are high 30's or low 40's. At what point can I safely put them outside in the coop with no heat lamp? Do I need to put them in the large unheated garage for a week between the porch and going in the coop. The garage is huge and empty and not insulated so its about the same as the outdoor temps. I have 7 chicks in the brooder but when they are ready to go outside they are being split between two coops. 3 in one and 4 in the other. My neighbor is taking 3 of them. I am keeping 4 of them. Incase breed influences your answer: Coop 1 will have, 1 buff orphington, 1 welsummer, 1 easter egger and 1 rhode island red Coop 2 will have, 1 welsummer, 1 easter egger and 1 delaware PDZ is working well but its an uphill battle and I need a plan on when to move them.