Hello! I am a new chicken owner this year and have 6 approximately 8 wk old hens. They are completely feathered out and have been living in their coop for a couple of weeks. They seem to be doing very well and a re growing quickly, but there is one question I have for the group. My coop has a nesting box area that sticks off the side as many do, with dividers so that there are 3 nests. The main portion of the coop has 2 perches. My girls are not roosting on the perches. Instead they (all 6 of them) cram themselves into the nesting boxes. Sometimes all in the same box. Are they cold? It is getting down into the 60s at night around here -- but I am seeing them cramming into the nesting boxes when they first go inside in the evening, before it has really cooled off. Assuming they are not cold, should I not worry about it, or is this some kind of bad habitual behavior that will affect their use of the laying boxes when they are mature enough to lay? Thanks in advance for any input!