My two week old chicks have bubbling noises coming from their butts. I swear it sounds just like hydrogen peroxide bubbling! I have been feeding them medicated chick feed for a week and today I started mixing in cracked corn and giving them a dish of chick grit. I am really bugged out by this and I know my boyfriends family thinks I'm crazy for sticking chicken butts up to everyone's ear! They hear it too though. What the world!?