Highlight was a first-calendar year Caspian, unfortunately we were not able to read the ring:
Caspian Gull, 1cy by little-W | Studying gulls, on Flickr
Caspian Gull, 1cy by little-W | Studying gulls, on Flickr
Among the other rings were two Dutch LBB's with color rings:
Green PJ2, ringed at the Europoort near Rotterdam:
Lesser Black-backed Gull, (L.f. graellsii), 15cy, G[PJ2] by little-W | Studying gulls, on Flickr
Lesser Black-backed Gull, (L.f. graellsii), 15cy, G[PJ2] by little-W | Studying gulls, on Flickr
...and Green Y.AXP from the Forteiland colony at IJmuiden (where I saw it a few weeks earlier):
Lesser Black-backed Gull, (L.f. graellsii), 1cy, G[Y.AXP] by little-W | Studying gulls, on Flickr
Note P1 in the left wing, it almost looks as if its half-grown?
Lesser Black-backed Gull, (L.f. graellsii), 1cy, G[Y.AXP] by little-W | Studying gulls, on Flickr