Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull (argenteus) CGAC 3CY & 5CY (3rd & 5th cycle), June 2010 & November 2012, De Panne, Belgium. Picture: Peter Adriaens. 

Ringed as pullus in July 2008, at Zeebrugge (Voorhaven), West-Vlaanderen, Belgium (51°21'0''N 3°11'0''E).

below: Herring Gull (argenteus) CGAC 5CY (5th cycle), November 17 2012, Oostduinkerke, Belgium. Picture: Peter Adriaens. 

Male. No signs of immaturity.

Herring Gull (argenteus) CGAC 3CY (3rd cycle), June 27 2010, De Panne, Belgium. Picture: Peter Adriaens. 

Complete moult started: new 3rd gen P1-P2 fully grown, P3 growing. P5-P10 old 2nd gen. Secondaries and tail old 2nd gen. Note dark iris.