Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull (argenteus) CSAP 3CY, March - August 2010, Koksijde, Belgium. Picture: Peter Adriaens.

Ringed as pullus on July 02 2008 at Zeebrugge (Voorhaven), West-Vlaanderen, Belgium (51°21'0''N 3°11'0''E).

below: Herring Gull (argenteus) CSAP 3CY (3rd cycle), August 01 2010, Koksijde, Belgium. Picture: Peter Adriaens. 

Complete moult started: new 3rd gen P1-P5 fully grown, P6 growing. P8-P10 old 2nd gen. Secondaries and tail old 2nd gen, moult in these tracts just starting.

below: Herring Gull (argenteus) CSAP 3CY, April 05 2010, Koksijde, Belgium. Picture: Peter Adriaens.

P1-P10 old 2nd gen flight feathers.

below: Herring Gull (argenteus) CSAP 3CY, March 05 2010, Koksijde, Belgium. Picture: Peter Adriaens.

P1-P10 old 2nd gen flight feathers.