Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull (argenteus) KTAD adult, January 03 2010, Koksijde, Belgium. Picture: Peter Adriaens. 

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

The apparent black spot on one of the tertials is not real, but an artefact of shadow/str​ong sunlight.