Herring Gull (argentatus & argenteus)

(last update: February 11, 2013)

Herring Gull 2cy, July 09 2013, Noordwijk, the Netherlands.

Secondaries and tail still juvenile. Active moult in primaries (complete moult in summer months): P5/P8. Many coverts renewed. Missing inner greater coverts expose base on secondaries lying underneath. Note greater covert row have two moult waves, one starting at outer feathers and another from inside.