Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 5CY, July 31 2015, Noordwijk, the Netherlands.

No ring, no provenance on origin nor on exact age. However, showing many features of local argenteus rather than Scandinavian argentatus, and set of characteristics indicate this age.

Overall adult plumage, except for single spot on tail and marking in greater primary covert. Small mirror on P10, no mirror on P9.