Albert de Jong
barabensis type 3CY, June 02 2007, Sverdlovsk oblast - SE Urals. Picture: Annika Forsten & Antero Lindholm.
Picture from Ekaterinburg landfill. Annika Forsten & Antero Lindholm took pictures of large gulls during breeding season in Pervouralsk and Ekateringburg, Sverdlovsk oblast, and northern part of Chelyabinsk oblast. All photos are from early June. Most of them looked like barabensis. See their website for more info.
Bird below: Iris turning paler already in 3CY. Calls included below picture.