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Message: <blockquote data-quote="lou salomon" data-source="post: 1376480" data-attributes="member: 16268">i know which you meant - seeing it alone, one really would think of argentatus! HG was my instant feel seeing the tail in the field also. then i noticed the longish bill, palish underside (not white!) and plain bicoloured gr. covert pattern which led me to the id of a strongly patterned caspian. at home in the pics i noted the dark/pale inner primaries which strengthened my 'theory'.still, maybe a hybrid or not - we won't know it for sure i guess but i'll bow to greater experience with argentatus if this is your and the other guller's feeling.</blockquote>