Herring Gull (argentatus & argenteus)
(last update: February 11, 2013)
Herring Gull (argenteus) X.Y 3CY, August 16-20 2015, Maasvlakte, the Netherlands. Picture: Leo Snellink.
Bird ringed as pullus in 2013 at Maasvlakte, the Netherlands.
No grey feathers, much resembling an age-class one year younger. Still, pale iris, marbling at some old, 2nd gen secondaries and 3rd gen inner priamries not showing obvious arrow heads as in fresh 2nd primaries.
