Hi - I am so very new to this site and to raising chickens in general so please bear with me as I am not familiar with all the correct naming as it relates to chickens, still learning! We have 4 pullets (2 are about 6 months old and 2 are about 8 months old) that in a backyard coop. We live in a neighborhood within city limits. We think the 2 older ones are laying but one of them has not left the nesting box for about 3 days. I don't think she has been eating or drinking anything so I tried to put a little water and food near her yesterday but she didn't seem interested. We are certain she is laying and think she still is because we keep finding eggs in the box she is in but who knows, it may have been the other layer who nudged her way into the same box. I lifted her up and just looked underneath (didn't move feathers around) and nothing looks abnormal. The only other odd thing I have noticed is that her earlobes are solid white. Should I be worried? Does anyone out there know what could be going on with her or what I should do? Thanks so much for your help!