Have stock loft wich I only use for breeding birds been spilt since February also have 2 other sections hens in one 14 late breeds in other all been vaccinated treated for cancer coxie worms all in good helf but last 3 days saw some green droppings in couple boxes next day birds were dead till now 2 old birds (2) yer olds 2 late birds phoned de weed was advised get parastop wich got yesterday use it but still had bird die today young member my club was saying last week some his helfy young ones were dying on him too theres no sickness just droppings green then dying any advice guys much appreciated in advance is it happening with anyone else what did u do