Hi, my husband and I have been "talking" about getting chickens for several months. Tonight he came home with three chickens and a temporary cage for them, feed, waterer, etc. (traded for them with a customer-he's a plumber) One of them sneezed a couple of times, could that just be stress? For a moment had a clear bubble on her nostril, but that went away. They were all housed together, so if this one's sick does that mean they'll all get sick? They're Red Sex Links and are very sweet. If this is an illness how can I head this off? I'm very confused.