i don't want to hijack the topic but i have an eye question,this year we have had trouble with a few Yb's that developed a swollen eye Ceres generally on the left eye the symptoms came as quick as it went over a couple of days never in all the years of keeping pigeons have i ever seen this,the only way i can justify an explanation on how it looked is that it looked like it had been fighting with the look of one eye cold without the water swelling.