In late autumn last year we was up driving past horsey when a Ferruginous Duck came on at martham broad. We was only 5mins away from it so we gave it a try. We arrived and managed to get the bird within seconds, watched it in the autumn sun. There was 3 other birders there, they had a good look at the bird then started chating. I carried on looking at the bird, it stretched its foot up to itch it's head and then suddenly i saw a blue ring around it's leg. I was wondering if anyone here, on the forums knows if european ringers colour band the birds they ring or if the bird i saw was an escape?