The Park Service has cut down a lot of trees at Crissy Field that were once frequented by hunting hawks. Thankfully the few that remain have still got some hawk attracting properties. The other evening I saw a Red-tailed Hawk bank in the setting sunlight and land to survey the gopher strewn grass below. Above, it leaps into action when it spots something moving in distant taller grasses.
Tough hunting that evening sent the hawk towards the Golden Gate Bridge and out towards the Presidio, presumably to roost and try again in the morning.