I have 10 chicks that are 6 weeks old now. They've been outside with their brinsea eco glow for a week now. I am wondering if it's safe to put them in the big coop now (with no heating element) full time. I'm in Northern California and the weather has been pretty stable the last couple weeks, a little rain here and there, day time temps of high 60's and nighttime temps in the mid to high 40's. Since they've been outside they've been shielded from the rain. They are currently in a large wire dog crate under my patio cover with the heater. But it seems like they should be pretty acclimated to the colder temps by now. They are almost completely feathered, maybe a tiny bit of fuzz left on their necks but otherwise they are miniature chickens!! Any advice is appreciated!!