Here are the symptoms Lathargic, no strangth to eat, comes on with no warning, no discharge from nose and eyes are a bit sunkin in. What is it??? Buff Orpington breed. this is the second one to die 2 months apart from each other and I am a clean freek so the coop is not very pooped up. Raised from a day old from a good breeder the chicks are about 7-8 months old.