I have a relatively small flock of birds, (60 or so chickens, 14 quail, 2 pheasants, and 5 guineas.) A month or so ago I noticed that a few of them were sneezing, then I think it spread.. (more kept sneezing.) The symptoms I had were sneezing, runny nose, and a little noise that they had when they breathed (which I didnt notice at the time.) I spent HOURS injecting each and every bird with tylan, for the 3 days. I think the sneezing slowed down, but it may have been my imagination, because it never COMPLETELY stopped. Now I think they are starting to sneeze more again. WHY ARE THEY DOING THIS?! Did I treat for the wrong thing? What could it be if Tylan 50 didnt help? ANY IDEAS ARE NEEDED!!!