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Message: <blockquote data-quote="AStevenson" data-source="post: 1221918" data-attributes="member: 34537">Lou,Yes GBBxGlauc was the mooted id of the bird I posted, base on the feedback I got at the time - on the deck it had a more glauc structure, and it did look like a young GBB with reduced dark markings which had been dipped in flour - it really stood out! The underside of the primaries was genuinely pale cream whilst all the primaries on the upperside had subterminal chevrons.As for your recent horrors, the flying ones are michahellis?? Not sure about the 2 back ends.....reduced white crescent suggests not fully adult - 3rd cal year yellow-leggeds?? or it is trick and they are common (mew) gulls! or worse Caspian.......Andrew</blockquote>