Larus cachinnans adult, July 03 2012, Baku landfill, Azerbaijan. Picture: Chris Gibbins.
Relatively short white tongue on underside of P10 (but not visible), as medial band broader than length of mirror+tip. Large mirror on P10, no sub-terminal black. Small mirror on P9.
Speckling category: 50-75%. Colour of iris: darl.
Orange gape and red orbital ring.