This 21 February 2020 video says about itself:
A quick look at its history from our EURING partners revealed to us that this bird was originally ringed as a one-year-old near Warsaw in Poland on 24th November 2018. It was also spotted last year at Salina Nature Reserve on 10th February 2019, and had also been wintering back at Salina this year along with the thousands of gulls that find refuge here in winter.
After some time under our care, this Black-headed Gull returned healthy and has once again been released at Salina. We hope it returns safely to Poland to raise the next generation of Black-headed Gulls that will visit Salina once again in winter!
Watch this video documenting the gull’s release back into the wild at Salina on 21st February. Salina Park Manager Manuel Mallia also speaks about BirdLife Malta’s own colour-ringing project, specifically for Mediterranean Gulls.
Footage by Samuel Henderson. Editing by Nathaniel Attard.