I have two White Rock hens and one Golden Comet hen in a 5'x8' enclosure. They are let out to free range an hour a day just before it gets dark and most of the day on the weekends. They are 8 months old and laying one egg a day to one every other day. I am very pleased with this laying schedule. I have noticed that the White Rock's seem to be loosing their feathers on their bottoms around the vent. I am unsure if this is normal this time of the year. Today the high is 68 degrees but it has been a warm winter for us here in South Florida. We have had only a handful of nights in the 40's over the last three months and many days into the 80's. Could they be molting?