Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull SS0T 3CY (moulting into 3rd cycle), July 31 2011, Koksijde, Belgium. Picture: Peter Adriaens. 

Herring Gull ringed as 2nd-cycle in Greater London, UK, in December 2010.

Moult in coverts indicate that complete moult has started. Secondaries old 2nd gen. Moult in tail.