I have 30 cornish cross mixed with 5 laying hen chicks (buff orpington and americanas)--all about 7 weeks old at this point. 2) What is the behavior, exactly.they start out a little lethargic, then their combs and skin turn slightly purple, getting more purple with time, they have a slight increase in breathing rate, but not overly labored, then they get weak and end up dead (at this point I am killing the sick ones to prevent more spread as none seem to be recovering.) 3) How long has the bird been exhibiting symptoms? Started with 2 birds about 2 weeks ago, seem to have one or two coming down with symptoms every 5 days or so-- I have lost 7 birds so far 4) Is there any bleeding, injury, broken bones or other sign of trauma. no 5) What happened, if anything that you know of, that may have caused the situation. 6) What has the bird been eating and drinking, if at all. they are drinking fine and seem to be eating well, but slightly less than normal 7) How does the poop look? Normal? Bloody? Runny? etc. poop has been normal on all except one dead one early on had a bit of blood around vent 8) What has been the treatment you have administered so far? no meds, extra cleaning of pen, isolation of sick looking birds, vitamins in water 9 ) What is your intent as far as treatment? For example, do you want to treat completely yourself, or do you need help in stabilizing the bird til you can get to a vet? I am more interested in keeping the rest of my birds healthy as opposed to healing the sick ones 10) If you have a picture of the wound or condition, please post it. It may help.I will try and send a picture if I get another sick bird 11) Describe the housing/bedding in use They are in an open air lean to shelter with a fenced yard. They have access to free range during the day. They interact with a flock of laying hens (mixed breeds) while free ranging--the laying hens seem fine. Their bedding is spruce shavings--changed every 1-2 days. I did have a waterer leaking, so an area of the pen was more moist than usual, but this problem has been resolved for a week or so. Any ideas/ suggestions would be greatly appreciated!!