Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull (argenteus) YZAW 1CY-2CY, December 2012 & June 2013, Koksijde, Belgium. Picture: Peter Adriaens. 

Ringed as pullus in July 2012 at Raversijde (VOC), West-Vlaanderen, Belgium (51°12'0''N 2°51'0''E).

below: Herring Gull (argenteus) YZAW 2CY, June 15 2013, Koksijde, Belgium. Picture: Peter Adriaens. 

Bird in complete moult. Several new wing-coverts.

below: Herring Gull (argenteus) YZAW 1CY, December 19 2012, Koksijde, Belgium. Picture: Peter Adriaens. 

Ringed as juvenile in July 2012 at Raversijde (VOC), West-Vlaanderen, Belgium (51°12'0''N 2°51'0''E). Local hatched bird.

Juvenile plumage, with replaced scaps.