Hi, I was wondering if anyone can help. My 11 week brahma cockerel has been sneezing for about 3 weeks. He has had a two week course of tylan antibiotics, but still sneezes. There are no other symptoms. He has clear eyes, no running nostrils. Eating and drinking very well (he has an unbelievable appetite) and scratches round the yard perfectly happily. Well until the older hens chase him that is. Any advice would be much appreciated. Here a few pics.