Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull (argenteus) 2V 4CY (3rd cycle), April 05 2010, Koksijde, Belgium. Picture: Peter Adriaens.
Ringed as pullus by Roland-Jan Buijs, on July 02 2007, at Vlissingen, the Netherlands.
Retarded bird, difficult to age in the field. Grey saddle, but all coverts very 2nd gen like. 3rd gen primaries.
