I have eight, nine-week-old pullets. They used to sleep in a dog-pile on the floor of their coop (night time temps range from 26-35F). Three days ago I saw all but one dog-piled into a nesting box at bed time. I assumed they were trying to stay warm. The one loner I think has bad vision and is a scaredy cat, so she is usually left out. Also the box only fits seven of them. The nesting boxes are in line with the the highest roosting bar, so I now know I need to address that issue and lower the nesting boxes or raise the roosting bars. The total roosting bar space is 8 feet of 2x4s with wide side up. Currently all chicks could fit on one bar. With room to spare. Will they grow out of this or do I have to intervene? I don’t want them to be cold so I haven’t bothered moving them. One of my chicks is a “failure to thrive” and still has her chick down and some scraggly teenage feathers. She relies on the bigger girls to cuddle her.