During my lunch-break one day a couple of weeks ago I was in Castlewellan Forest Park, so I had a quick nosey at the small flock of Black-headed Gulls which were hanging around the lake.
Amongst them was this, BTO ringed bird.
I was able, with the help of a loaf of bread and by taking loads of photos on my camera, to piece the ring number together without having to catch the bird. I've submitted my sighting to the BTO and I will update the blog when I find out the life-history.
P.S. I've deliberately not put up photos showing the ring numbers, that might spoil the surprise!