Albert de Jong
Larus cachinnans 5CY KN76 September 25 2010, Jastarnia, Poland. Picture: Michal Rycak.
KN76 from Belarus, observed September 25 2010 at Polish Baltic Sea - Jastarnia fishing dock. KNxx-rings have been used (most likely all of them?) at Gatovo near Minsk in a roof-breeding mixed colony cachinnans + argentatus, in year 2006. So probably KN76 will turn out to be 5CY cachinnans.