In the Lower Cuckmere, the Gull flock held another adult Mediterranean Gull, an adult argentatus Herring Gull, and a very small, frosty, and very long-winged 1w Lesser Black-backed Gull which appeared very Caspian Gull like, when in flight showed a complete white upper-tail with a dark tail band, possibly suggesting a Baltic-type bird, but annoyingly the bird took flight almost straight away allowing no photos to be taken.
adult Med. Gull by the approach road to Seaford Head