I have some 2week old silkies and 3 week old brown leghorns. I noticed the day before yesterday that 2 of the silkies seemed to have stuffy noses. The only symptom they were exhibiting was occasional mouth breathing (rare and mostly when eating) and sometimes a squeaky noise from there nose and occasional head shaking. Today, one seems to be a little worse. It acts like me when I have a sinus infection. It swallows alot and closes it's eyes sometimes. I also heard it sneeze and there was very very minor nasal discharge. It still eats and drinks fine and has almost as much energy as the other guys. I don't know if I'm being paranoid or what but I think I'm noticing a few others seeming stuffy. can chickens have sinus infections? These birds have never been outside and I bought them from Cackle hatchery. They have been Mareks vaccinated. The leghorns are in a separate brooder next to the silkies. I'm having different issues with one or two of those guys. I'll put that in another post. I also have some mutt chickens outside, but my new guys have never come in contact with them and, also, the mutts are healthy. ( knock on wood). So, the question is, do I go ahead and medicate silkies and leghorns with what I have, which is Duramycin-10 and ProBios? It seems that if one guy is displaying URI symptoms, then pretty soon they all will. I'm freaking out a bit as these are my babies and I want them to be ok. We had poultry and water fowl when I was a kid and I don't remember ever having these issues with them. I'm also freaking out because I have two parrots in the house too and I am so afraid they will catch something from the chickens. They are in another part of the house, and I do wash and change clothes before handling my birds after handling the chicks. Still, it bothers me. . Im so worried about the chickens it's kinda making me feel sick. I want to see them grow and live happily in the houses and pens we are building. I asked my grandma if any of her chickens ever got sick when she had chickens and she said no. In case you are wondering, the chicks get medicated chick crumbles and I've been giving them Polyvisol for several days now because I figured since they are inside they need the extra vitamins. Am I worrying too much? Suggsetions? Words of wisdom? Help please.