Whilst there we were also very lucky to catch up with 4 ringed Black-headed Gulls. 3 of the gulls were metal ringed and had been ringed in Denmark, Sweden and Finland! The fourth bird had both a metal ring, and a darvic ring, and had originally been ringed in Poland.
The Danish bird was ringed, as a chick, on the island of Hirsholm in northern Denmark, on 26th May 2018, 917km away.
Swedish bird 022
Unfortunately, I could only get 3 digits from the Swedish ring, so I won't be able to get any more details of this bird.
Finnish bird ST3164 _
I managed to get most of the digits from the Finnish bird's ring, just missing the last one! I've sent off the details that I could see, so hopefully, I'll be able to get some details later.
Polish bird T6TP
The Polish bird had a darvic ring, T6TP. It was ringed as "at least 2 years old" in a wetland area near the Vistula River, Plock on 21st May 2018, 1395km away.
Year List update:201 - Ring-necked Parakeet