Herring Gull (argentatus & argenteus)(last update: February 11, 2013) |
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Herring Gull (argenteus) CUAK 2CY-4CY, February 2010 - March 2012, Koksijde, Belgium. Picture: Peter Adriaens.Ringed as pullus in June 2009 at Zeebrugge, West-Vlaanderen, Belgium. below: Herring Gull (argenteus) CUAK 4CY, March 25 2012, Koksijde, Belgium. Picture: Peter Adriaens.Adult-like primaries and secondaries.below: Herring Gull (argenteus) CUAK 3CY, May 22 2011, Koksijde, Belgium. Picture: Peter Adriaens.Complete moult: P4-P10 old.below: Herring Gull (argenteus) CUAK 3CY, March 26 2011, Koksijde, Belgium. Picture: Peter Adriaens.No complete moult. 2nd gen flight feathers. below: Herring Gull (argenteus) CUAK 3CY, January 10 2011, Koksijde, Belgium. Picture: Peter Adriaens.2nd gen flight feathers. below: Herring Gull (argenteus) CUAK 2CY, August 01 2010, Koksijde, Belgium. Picture: Peter Adriaens.P6/P9. Active moult in outer secs and in tail. below: Herring Gull (argenteus) CUAK 2CY, February 07 2010, Koksijde, Belgium. Picture: Peter Adriaens.First cycle plumage: old juvenile feathers with replaced, 2nd gen, scaps. Last replaced scaps lack the bold anchor shapes, more plain grey with shaft streak. |