There were literally hundreds of Bald Eagles mostly in the South Delta area this spring. Everywhere you looked there were "BIRDS!!!" but big eagles, hawks and blue herons, not little sparrows, pigeons and gulls. It was cool. Apparently they like it here where its safe, nobody is shooting them (except with cameras and smartphones), and they can find enough to eat.
We have another place further north called Brackendale where the eagles congregate during the autumn and early winter to feast on the salmon run.