My husband and I have 5 hens and 1 rooster that are over a year old. We have only had them for a few months, and they seemed to adjust well to their new home and were laying 3-5 eggs a day. For the past two weeks, we are lucky to get 1-2 a day. I have noticed a lump on the chest of two of the hens. All of them seem to be moulting, but this was happening before we even had them and did not seem to be a problem before. If anyone knows what this might be, please let us know.