Perfect conditions at the Gann this afternoon to look for colour-rings, with calm conditions, no other people, and the tide rising but not too high. Managed to read 17 Oystercatcher rings, all from the local scheme by the Pembrokeshire Ringing Group (orange ring with black numbers).
I also managed a little scientific study of my own. I can confirm that 98.8% of colour-ringed Oystercatchers at the Gann, when roosting, stand on the WRONG leg, i.e. the one with the number is tucked away all cosy and warm in the belly feathers, out of sight of my telescope! They are even pretty decent one-legged hoppers from the rising tide!
In amongst a small group of gulls a total of 4 Mediterranean Gulls, one of which bore a white ring on its left leg, with black 3FP6 on. Like 3AA0 recorded on 23rd December, it will have been ringed in either Belgium or the Netherlands. It will have been ringed as a pulli as the ring was on the left leg (birds with rings on their right legs were ringed as adults, in this scheme at least). UPDATE: it was ringed as a pullus in Flanders on 27/5/2008, and the colour ring was added on 11/5/2019, also in Flanders. Since then it has been seen at Marsh Lane, Solihull, on 6/10/2019, and in Solva on 12/11/2019 (Mark Nightingale - see http://pembsbirds.blogspot.com/2019/11/glaucous-gull-wooltack-point.html).
Out in the bay a distant Red-throated Diver, plus 2 Great-crested Grebes, but no sign of yesterday's Slavonian Grebes.
