I imagine the "honey combing" of the horns makes them lighter as well as helping regulate the temperature. He seems to be watching you as you take his picture! I like the beautiful background, too!
I used to look at those horns and think, "How in the world do they hold those things up?!" Now I know they're basically hollow- how cool is that? Anyway- this is a really nice shot because he stands out so dramatically from the background. good catch!
