One thing people do not understand is Chickens carry disease....They all do......Once they get stressed...example, getting cold...They display symptoms of what they have.....It either kills them or they get over them again.....Keeping Birds warm and stress free helps........I only ever use OXY TETRA -A........I also do not feed many snacks to my Birds.....Chicken feed and water....Once a week I might give them a treat?
Cheers!
Cheers!