Three of the darvic rings were from the Sorby Breck/Birklands Ringing Group partnership, and involved a familiar bird, 217A, that was ringed at Center Parcs in January 2019, and one I first saw here in February 2019, and then again on 9th November 2019.
217A
The next 2 gulls were numbers 235A and 237A, both ringed at Center Parcs on 13th and 20th November 2019 respectively. These sightings were my first.
235A
237A
The other 2 darviced birds were also well known birds, EUM3 (Dutch ringed) and P519 (Lithuanian ringed), both of which have been seen here on several occasions last winter and this autumn.