Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 4cy, June 09 2013, Noordwijk, the Netherlands.

Secondaries and tail still 3rd generation, tail with obvious black.
Old 3rd generation outer primaries: P10 without mirror, P5 with subterminal dark band, P4 with white tip, no subterminal black.
Active moult in primaries (complete moult): P1/P3.