Hey guys please help me!!!!! I have 19, 3 month old chicks and they all have the same symptoms,a bubbly sound when they breathe. Can anyone help and tell me whats wrong?And 2 of my hens and one of my roosters are also acting wierdly when i call them in in the evenings they dont come for food. never mind ruuning for food they dont even take a step closer to the coop!!! please can someone help!!!! i'm sooo worried about them!!!!