So, I'm at my wits end at this point. We went from an amazing healthy flock to a complete mess in a couple of months. We went out an hour ago to dose a couple of closed eye chickens with Tylan50, and while in there saw a hen, at point of lay age wise, who yesterday was bright and vibrant with a nice big red comb, all of a sudden that comb was laying over and it had labored breathing. We picked it up to inspect it, but found nothing. It's doing that gasping a baby chick will do prior to death. We put her down, and let them out of the run to free range for the day. Sat down in our lawn chairs, and I asked my wife where that chicken is so I can keep an eye on her, and we noticed her standing by the door of the run with blood all over her face! Picked her up again, and noticed blood literally pouring out of her mouth. On closer inspection, we found some kind of growth on the inside upper beak, just below where the sinus holes are on the beak. It's very enlarged, and it almost looks like it burst, causing all the blood. I've never seen anything like this. Any ideas?? I'm thinking the breathing issues is probably because her sinus is completely clogged due to this growth, or she has aspirated blood. Totally clueless...please advise!