Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull sub-adult, 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.
4CY bird or retarded 5CY, maybe best labelled 'sub-adult'. Note much brown in old greater primary coverts and tail. Mirror on both P9 and P10.
