Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull (argentatus) 3CY, December 14 2015, Katwijk, the Netherlands.

No ring to get provenance on this bird's origin.

In rest, such birds may be mis-identified as 2CY birds, lacking the P10 mirror and the white tips on blackish primaries.