Thank you I have already been talking to Peter Brown about it, and he has been advising me, I just was curious to see if anyone elsehad had it. He didn't mention the contagious part; I did read an article that said that it could be, but this rooster has been slightly ill for weeks and no one else has contracted it; also, you can't see anything unusual in his mouth or throat. PB thought maybe it was further down and not visible. I had been treating him with antibiotics, to which he responded, but as soon as I took him off them his syptoms would worsen. Now we are treating him with a medication to treat the protozoa, if, in fact, he does have canker.And he seems to be responding to that, too! His main problem is that he can't swallow very well, but, other than that, he has no symptoms, except slightly watery eyes sometimes. The swallowing problem gets worse to the point he becomes depressed, if left untreated. I was hoping to compare his symtoms and treatment to someone else's. I have dewormed him twice this year and he appears to be in excellent health otherwise; he crows, chases hens, eats voraciously (except when the condition is bad); runs all day and roosts high in the rafters, except, once again, when the condition is worse; his feathers are shiny, although he's molting right now. Droppings are normal. He is only 1.5 years old. If I moisten his food with applesauce, scrambled egg, or yogurt, or cottage cheese, anything like that; he seems to be able to swallow much better, I suppose that would make sense.