I am a new flock owner. We bought chicks from Murray McMurray in June. They are 7 months old and been perfect until 2 Days ago. They were right on schedule with egg laying,too. I see signs of small black dots on the waddle and crests. I also noticed a black spot on one of the girl's legs. The egg production hit a stone wall immediately. They are pecking at each others butts. I researched prolapse at first but that is not what is going on as the innards are not.protruding. I suspect Fowl Pox because I didnt know I was supposed to vaccinate for that at 4 months. We are in NY and it is middle of winter. Any thoughts?