We set up a brooder in the big coop today, it's baking in there right now so I figured the girls wouldn't need a heatlamp, plus they've been off it for about 2 weeks now in a room with the windows open all the time. They're pretty well fully feathered. I put them in and they were fine at first then they started getting all weird and scared and I thought they were cold until I thought ..what if they're scared of the big girls? THey started to go all weird and scared at the time the big girls started piling in for bed so... Is it possible our big hens are scaring the heck out of the babies? THey can see each other and the hens seemed to be complaining that the chicks were making a lot of noise.