Hello! This is my first post here! I come here to find my answers to everything! I have some hens in my flock that have some bubbly watery eyes and a clear mucus that gets stuck to their beak. One is also looking pale. I think this is a respiratory infection from what I've read. What is the best way to treat the whole flock, seeings how more than one is getting this? Other than these symptoms, they are still eating well and active. Thanks in advance for any help!