Why do my baby chicks pile on top of each other ? I turned off the light during the day it was in the 80's today and They still pile on each other unless They are eating or drinking.They are 4 weeks old .when I move them they go right back. I'm afraid this will kill them . Moved them to a new house three times larger then the brooder with a run,just checked on them and they are all piled in one corner.Plenty of water and Air. What NOW!!!