There's no conclusive evidence for the degree of sexual dimorphism in tyrannosaurs. Actually, the idea that Sue is female is pure conjecture, since there's no way to know for sure. If they followed the general rule among animals alive today, the male was probably bigger, more colorful and more ornamented, but of course this is all speculation for now.
I was wondering because birds of prey emphatically do not follow the general rule Of course, the degree to which a one kilogram aerial predator can be compared to a six-ton terrestrial one is... debatable. How big is the T. rex that supposedly had medullary bone?