This bird, billed on the pagers as a probable Caspian Gull, has a rather short primary projection, a broader than normal tailband and patterning on the inner greater coverts. However, as far as I can see other features support Caspian Gull including: Head and bill shape. Bullet-hole eye, surrounded with some eye-shadow and white eye-lids. Green bill with a black band and some red on the gonys. Long, greyish-pink legs. Small white mirror on second generation P10. The apparent white tongue on the inner web of P10 (see 2nd picture) is probably an out-of-place tertial. Very white underwings, outer primaries fairly translucent because of pale inner webs. Restricted black on primaries, relative to michahellis. I would not diagnose this bird as a hybrid or anything other than a female 3CY Caspian Gull. However, I have been wrong before and maybe there is just too much wrong with it to be sure of any identification. Postscript: BirdingWorld magazine has this bird as a definite Caspian Gull (and a better picture!). So, on balance I include this under Caspian Gull.
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