I have 22 adult hens who were laying pretty well up until a month ago. I gave them Verm-X for worms, McMurray's Avia Charge, put in roll out nest boxes (thinking egg eating was happening), but still nothing. I get anywhere from 0-4 eggs per day. We have had serious forest fire smoke here for two months that has just cleared up 2 days ago. I have also put in a group of 23 - 16 week old red stars. They are all getting along fine. They all seem healthy ,drinking enough water, eating really well, poop looks normal, the few that were molting are getting all their feathers back. I am at a complete loss. I am so confused and frustrated and not making any money from the eggs. Does anyone have any suggestions?