Welcome to BYC. Glad you decided to join our flock. Yes, it's a Speckled Sussex rooster. Please feel free to ask any other questions you may have. We are here to help in any way we can. Good luck with your flock.
Nice looking bird, does have nice sleek legs , I thought roos have fat legs. Maybe he is meant to model fashion hose??? like I think Joe Namath used to do.