My silkie/chochin rooster has a clear discharge coming out of his nose constantly and he is shaking his head alot. At first i thought it was respiratory infection so i gave him duramycin 10 but he hasnt gotten any better. He doesnt show any other symptoms. He walks around, gets excited for treats, and his poo looks normal. Oh and i dont know if this helps but we got a few chicks and they have developed the head shaking but not the clear discharge. I feel bad cause they are alyways shaking their heads and it seems like it would get annoying. so is this normal?