Sick Peafowl about 5 months old. Noticed last night it was away from the rest of the flock. Walking slowly, hunched up and its feathers puffed up. Started the babies on Tylan 1 1/ 4 tsp per 6 gallons of water. We had 2 sick babies earlier this month, first one we noticed on a Fri night, and it was gone by the morning. I started corid. A few days later another started looking hunched and puffed. Started hand feeding and oral dosage of corid, baby was very light so i thought it was dehydrated. Lost second baby after a few days of treatment. By then it had runny nose, and it eyes we dry gooey and closed Their pen is 10x27, enclosed barn stall, adults are in a stall next door. No signs of any issues with the adults. Any help would be appreciated.