My bantam rooster Iris has a high pitched crow, but since yesterday evening, he sounds like he's losing his voice. His crow sounds strained. I don't think he was injured in anyway. Can a rooster lose his voice? He can be a little nasty man and attacks me fairly often. He's a teeny little thing but he packs a hard punch so when he comes at me, I swat him away. Now I'm petrified I've swatted him and hurt him somehow. I don't think I did, but I'm worried about him...paranoid me is thinking cancer or something odd. Any ideas? I don't know if I should take him to the vet or not.