4-7 week old bantams I moved out to the coop a few days ago...it's been 80 during the day, 60's at night. Now today high was high 50's...they spent all day in the coop but they were fine. Tonight will be low 50's, maybe high 40's and I'm sick with worry. I have sand in my coops so I put a bucket in there with hay and pine bedding and put them in there at bedtime instead of putting them on the roost like I've done the past couple nights. I've never seen them so fluffed up and they're all balled up in the bucket. How do I know if they are too cold? I already moved the brooder out of the garage (only source of electricity) and it's too large for me to move back in myself, hubby's at work. The only other thing I could do is bring them in the house and put them in the bathtub. Here's a pic of one from a couple days ago...wwyd? Thanks!