On a recent trip to Anza Borrego Desert State Park with my son we spotted a large moving mass a few hundred feet up the rocks of a hillside. I pulled over and looked a little harder, turned out to be a Great Horned Owl. A male I believe. He was pretty far away and my 300mm lens just couldn't pull him in very close. As I was taking pictures of him my son saw two more owls, these were whiter in color and I believe the young owlets. They seemed to stay mostly hidden, only poking their heads out occasionally. The male flew off to a nearby crevice in the rocks where I believe the nest to have been and the young owlets finally emerged from hiding for a couple of pictures. After a few shots we left them alone and moved on.