Bobcat

This is the first bobcat I have ever observed in the wild. I was out birdwatching at Sweetwater Regional Park when I spotted him or her. He was sitting at the edge of the brush about ten yards away from where I was on the trail. At first I thought it was a cat, but it was at least two times the size of a domestic cat. I had just observed a large Desert Cottontail rabbit in the area roped off for habitat restoration near the Bonita Road entrance of the park. Was it stalking the rabbit?