Caspian Gull L. cachinnans
juvenile Caspian Gull, moulting to first winter was photographed on
Note in all the pictures on this page its typical jizz with small head, long wings and legs, bill shape (tapering), and the pattern on the greater coverts (without the marked contrast as in Herring and Yellow-legged Gull) and scapulars, especially the lower ones. The tertials have a broad pale edge. This is much narrower on a juvenile Yellow-legged Gull. In the bottom picture the almost white underwing is visible, which is typical for 1st-year Pontic Gull. It has already moulted two median coverts.
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