an informal birding record
tarsiger.co.uk
 
Yellow-legged Gull
 

Larus michahellis

Above: 1st winter/1st calendar year (Essex, 27 August 2011)

Very much like a Lesser Black-backed, but it's already started its median covert moult. Conversely, the scapular moult seems rather limited (late starting) for a Yellow-legged.

 

 

 

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