Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 4CY, 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 or retraded 5CY bird, maybe best labelled 'sub-adult'. Overall adult plumage, with several marked feathers in tail, tertials and coverts. Limited black on bill.