Thanks Buddy,

I'm going to work on the eyes and also maybe the body to make them more visible.
This guy was grazing for about 30 minutes before he finally looked up at me. I was able to get about 4 shots and then he returned to grazing. I'm hoping to get a better lens for my next trip that will give me a sharper image. I now use my D200 with a Prime, manual nikkor 400mm 5.6.

thanks
Dale