2cy Herring Gull Green 5.8 – 20130730

Second-calendar year European Herring Gull Green 5.8. Leiden, The  Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Larus argentatus argenteus, Leiden, The Netherlands. Seen at the same location where I saw it on 4 occasions between December 2012 and March 2013. Last observation was on March 31.

Ringed as pullus in July 2012 in the port of Rotterdam, The Netherlands.

  • Primary moult pattern: P1 to P5 fully grown, P6 almost half-grown (in right wing not visible), P7 missing or growing, P8 to P10 old.
  • Primary moult score: 29 (5555531000).
  • All secondaries first generation, S1 in the left wing dropped.
  • Moult in the left wing seems to be a little more advanced than in the right wing.
  • Tail feathers all first generation (or possibly one feather missing).
  • Median coverts and lesser coverts all second generation.
  • The outer greater coverts have been replaced, the inner greater coverts have been dropped.
Second-calendar year European Herring Gull Green 5.8. Leiden, The  Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The  Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The  Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The  Netherlands, 30 July 2013.

Second-calendar year European Herring Gull Green 5.8. Leiden, The Netherlands, 30 July 2013.

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