Albert de Jong
Larus argentatus? 7CY KE21 May 04 2012, Gatovo - Minsk district, Belarus. Picture: Dmitry Goncharov.
Bird ringed red KE21 and BYM DA-03110, ringed as pullus on June 07 2006 at Gatovo - Minsk district, Belarus, (53.47'00''N, 027.40'00''E). Again in the mixed rooftop breeding colony in Minsk, with breeding cachinnans, argentatus and fuscus.
Speckled iris, bill with obvious gonys angle and wingtip pattern not visible.