Yesterday Christian Pedersen and me spotted an interesting gull in Byparken, Bergen. We managed to catch it and ring the bird. Our immediate thoughts was Caspian Gull, but this seemed to good to be true! Caspian Gull is a major rarity in our county (Hordaland) and this bird will be the first or second observation ever if accepted. The bird was ringed with black JN879 and normal metal ring on the other leg.
Yesterday the pictures was sent to different gull experts in Norway and with help from Morten Helberg to Theo Muuse and Kjeld Pedersen. They all agree that this looks very much like a Caspian Gull. Do you experts here at the gull-research forum agree and do you think we can exclude Caspian x Herring Gull?
Thank you very much for comments. Here are the pictures available: