Hello I've made a couple post about respiratory issues in my flock the past couple of days. I'm a chicken watcher I know my birds behavior and I know the clean their beaks by scraping. Well I've been sitting with them today and they are ALL excessively wiping their beaks and not just on hard surfaces but in dry dirt, their oyster shell and everywhere else. Is this another symptom? I'm getting tylan 50 tomorrow and I guess I'm going to dose them all because it was just one hen sneezing and now it's my rooster too although he sneezes a lot less. I HATE THIS I just switched to a different feed today that's less dusty and I believe has better nutrition than the purina and tsc brand. Hopefully this will give them a boost as well.