Black-headed Gull, J0190, black on white

I now have data about this bird from 'ringmerking.no', the Norwegian ringing scheme based in Stavanger.

It is a male that was ringed as an adult on 21/4/2021 in Oslo, Norway. Since then it has taken up long-distance commuting. I'll list where it has been seen between then and now:

1/4/2022 Oslo, 24/6/2022 Oslo

20/12/2022 Shibden Park

14/4/2023 Oslo, 12/5/2023 Oslo

27/11/2023 Shibden Park, 4/1/2024 Shibden Park

6/4/2024 Oslo, 10/5/2024 Oslo

22/8/2024 Shibden Park, 28/9/2024 Shibden Park 

Oslo is about 1050 km (650 miles) NE of Halifax