Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull HS5T 3CY (moulting into 3rd cycle), July 11 2011, Nieuwpoort, Belgium. Picture: Peter Adriaens. 

3rd-cycle Herring Gull ringed as 2nd-cycle in Essex, UK, in January 2011

Moult in coverts indicate that complete moult has started. Rectrices and secondaries old 2nd gen.