Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 4CY, March 02 2017, Katwijk, the Netherlands.

No ring, no provenance; no mirror on P10. Adult-like inner primaries. Pale brown on secondaries and GC. GC lacking any patterning of marbling, vermiculation or whatsoever.