I finally got a picture of the hawk. Here he is on the roof of my house at the oposite end of the pond. I couldn't get very close because he would of flown away. I managed to get 2 shots of him. I am going to the nature preserve tomorrow to get advice on how to deter him once again.
ETA on 6-12-09: I talked to the naturalists last night at the Farbach Werner Nature Perserve and they informed me that this hawk is a red tail. Earlier in the year we had a red shoulder. I knew he looked different but I thought he was an immature red shoulder. I was wrong. LOL Now to keep him away from my pond and fish. This is easier said than done.