Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull argentatus X032 1CY-2CY, October 2016 - January 2017, Den Haag & Katwijk, the Netherlands. Picture: Ted van der Knaap & Mars Muusse.
Ringed as pullus in 2016 in Germany.
Herring Gull argentatus X032 2CY, January 20 2017, Scheveningen, the Netherlands.
Strong dominance of argentatus: retarded moult, underpart flecking, tertial pattern, gonys angle, head shape and streaked head.
Herring Gull argentatus X032 1CY, November 16 2016, Katwijk, the Netherlands.
US: 50-75%, LS: 25-50%, TOTSCAPS: 25-50%. Coverts and tertials juvenile, except for 1x central MC.
Herring Gull argentatus X032 1CY, October 30 2016, Den Haag, the Netherlands. Picture: Ted van der Knaap.