Hey Guys! Hoping someone can offer some advice on a diagnosis. I had bought a batch of Polish chicks 5 weeks ago from an individual. Several of them died without any reason and seemed to stop growing at a young age, very stunted. Out of the 18 I bought, I only have 10 healthy ones left, 3 are still a little small compared to their flock mates. Today one of the healthiest, fastest growing ones was in the middle of their yard with his neck stretched out looking like he was gasping. I went to get him inside to see what was up. He is whining, sometimes squeaking (maybe a sneeze?) and breathing heavily. I brought him inside and I have some electrolytes on hand so I tried to get him to drink some of that but he isn't interested. He is laying in a dog crate now, whining and with his neck still stretched out and his mouth open. Suggestions?