Limited to long-range scans with my leg injury and that didn't make things very easy with an intermediate-toned-mantle on large gull sat on the rocks at the seaward end of Heysham One. Not the bird photographed on the wooden jetty a few days ago - that was a deceptive Lesser Black-backed Gull, rear on straight into the sun - this was side-on in good light.
Med Gull - at least 14 including 4 2CY
Little Gull - moulting adult
Large Gull - possibly the bird photographed by Janice the other day - putative ad Yellow-legged Gull