So I got these chicks April 5th at tractor supply and now that they are older I'm really worried this one could be a rooster since it has no tail feathers. They are suppose to be hens but I know how that is. I don't even see any feathers growing growing in the other one has a full tail already. Could something be wrong with it it seems very healthy otherwise. I think that it's breed is a red sex link. Thank you.