Sorry, another is it a Caspian Gull thread

. Anyway, I photographed this gull at Friedrichshafen on the shores of Lake Constance in southern Germany last month. Yellow-legged Gulls were ten-a-penny and I didn't pay too much attention to this gull while photographing it.
Looking at the photo again, I think it may actually be Caspian rather than Yellow-legged Gull (small dark eye, leg-colour) and just wanted to confirm this.
Thanks in advance!