As you can tell, [B] was farther away than [A]... All were identified through a Swarovski 65mm, 25-45x scope in high overcast conditions. On all birds, a yellow bill with red spot, head streaking, white (or near white) eye, and yellow legs were noted. All were directly compared with Cal Gulls and appeared a tad larger and darker mantled. The mantle color was observed for a few minutes in each circumstance, to make certain that differences in back color were not due to light angle, etc.