Who am I?

I saw this big guy perched on some old pilings near Foster Island. He kept harassing the ducks & other waterfowl by soaring overhead and then swooping down to the water behind them, resulting in a lot of quacking and frantic flying. Then he would perch somewhere else, and repeat the process. I was lucky to get this close, and have him sit still.

It most resembles he pictures of the Golden Eagle in my "Birds of Washington" book, but it doesn't seem like the habitat is right. Maybe it's a juvenile Bald Eagle? Anybody know? I'll post some soaring pictures too, but they didn't turn out as well...