This one's a 3+cy (adult)...
...and, to compare, this one is a 2cy (which has managed to keep its wings feathers in excellent nick). Note in particular the difference in the pattern of the greater coverts.
In between net rounds we had an opportunity to take a look out over the sea. Five redhead Smew were on the lagoon and two Red-necked Grebes, some Long-tailed Duck and the usual Red-breasted Mergansers and Eider were offshore.
I've managed to develop a stinking cold — I would blame co-ringer Arvid for 'kindly' passing his on to me, but I started sneezing as soon as I arrived so perhaps better to blame someone on the plane... — so I have, much against my own wisdom, spent this afternoon sitting on the sofa next to the heater and not going out birding.