sick rooster still
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Can you provide more information?
You say he is still ill - how long has he been sick - you have him separated for "treatment" what treatment(s) have you been administering and what for?
Can't stand and is unbalanced - has he had an injury, any sneezing, coughing, wheezing, runny nose, discharge from the eyes?
How old is he?
Has he been wormed?
What type of food/treats do you feed?
Is he eating and drinking - has he lost weight?