Poultry experience = 40 years. Quail experience = 1 solid year. All birds less than 1 year old. My poutry house is a 7 year old 16x24 garage with 6 big windows and 2 doors and a garage door. The quail are in hanging cages with wire bottoms and are covered for the winter with plastic. My poultry runs loose in the barn. Have a few caged doves in there also. and my barn cat lives in there too. Tite for the winter but there is ventilation, and there is no crowding. Problem = in the last month [cold] I have lost 9 adult females. No males. 2-3 from not being able to pass their eggs. A couple from unknown causes. Then I wormed with Wormal [ a relatively mild wormer and this site always suggests to worm 1 x year, it seems important]. So I wormed and 2 died in their sleep the same nite = from the wormer? An then 2 [one before and one after worming] died from being too thin, just a bag of bones. Whats up with that? I know poultry get Mereks Disease and "wasting" is a symptom. I had NO problems for 11 months with adults, hatching, rearing, no problems and now 9 in a month. I have looked for cocci signs and nada. Any ideas?