I'm in Northern CA. It's unseasonably cool right now - days 60's to 70's, and nights going as low as high 40's. Last weekend my babies were 5 and 6 weeks old. I decided it was time to move them from inside the house / brooder, to inside the coop (for which an extension is being built as I got twice the chicks I anticipated). Of course we went from sunny weather to pouring rain the last weekend. Chicks did fine Satur-day and night. Half-way through Sunday, midday, they all piled onto one another and were dead silent, and I freaked out and brought them right back into the house. I don't want to run an extension cord out to the coop for heat, and I use solar lights at night. They have been off artificial heat for 3 weeks now, and the room they're in stays around 70 degrees. I'm planning to bring them out during the days this weekend, and back in at night and feel this out. The day-time piling looked very unnatural to me, especially during the day. Thoughts?