Juvenile/first-winter Mediterranean Gull, a new juvenile Caspian Gull and 13 colour-rings read.
The photo below shows some nice features that aid identification of juvenile Caspian Gull. A plain pale head with just a slight darkening around the eyes (not a mask); a long and fairly thin bill (this one had an obviously long bill, but many juvenile Casps don't have exceptionally long bills); very plain brown coverts with its greater coverts being very dark; already replacing some scapulars with grey second generation feathers; a whitish breast and belly and spindly legs.
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| Juvenile Caspian Gull (centre), Shawell A5 Lagoons, August 15th 2019 |
Here a splendid video of the Caspian Gull (change to HD quality if not automatically done):
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