Gulls at Costa del Este, yet again

This morning's high tide at Costa del Este produced a 2nd-winter Lesser Black-backed Gull in addition to the 3rd-winter bird that's been around for a few weeks. Also seen was an all-dark juvenile/1st-winter bird that we're calling a Herring Gull, even though the size seemed to be similar to that of the Lesser Black-backeds. Photos TK. Again, no sign of the Kelp Gulls.