Herring Gull- Zilvermeeuw (argentatus & argenteus)

(last update: December 15, 2011 )

Herring Gull (argenteus) NLA 6.169.423 4CY, December 08 2014, Katwijk, the Netherlands.

Ringed as pullus on July 13 2011 at Missouriweg, Maasvlakte Rotterdam, the Netherlands (51° 56' 32 N 4° 2' 36 E).

Mirror on P10. Last vestiges of immaturity on outer coverts. Much black on bill and pink base.