I have seven laying hens that used to wait their turn for a favorite nesting box out of the three I provided. Now only two use the box and the rest lay somewhere on the three acres we have. It seems like their bahavior may have changed when the new rooster came to live with them and he is looking for a new home anyway. Should I lock them in the hen house for a day? I have tried that but can't stand to make them stay in there! Also, only one of my hens is showing signs of mites but it might be possible that she is being over bred?