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First-summer Caspian Gull

Larus cachinnans

First-summer Caspian Gull, 19th April, 2000
The head is proportionately quite small and pear-shaped, showing the characteristic snouty look of cachinnans, which is further enhanced by the long and slim bill - I liken it to that of a Slender-billed Gull Larus genei. The nape may appear to have a slight crest, or square shape to it.

First-summer Caspian Gull, 19th April, 2000
As well as the plumage details, note the structure characteristic of this species: the small pear-shaped head; high chest or "bosom;" and quite long thin and pointed wings.