Lesser Black-backed Gull- Kleine Mantelmeeuw (graellsii & intermedius)

(last update: June 25, 2012)

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Lesser Black-backed Gull 3-4cy H.501 June 2009, September & October 2010, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

Ringed as pullus on June 30 2007 at Amrum, Odde, Germany. Helgoland N006485.

below: 4cy H.501 October 24 2010, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

Last stage of complete moult.

below: 4cy H.501 October 16 2010, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

Last stage of complete moult: P7/-. Inner secondaries still old.

below: 4cy H.501 September 18 2010, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

Fourth-calendar year Lesser Black-backed Gull, moulting to fourth-winter plumage (fourth cycle, fourth prebasic moult). Two weeks later now, P6 is now fully grown and P7 is mostly grown. The outer secondary S1 is now fully grown, while S2 and S3 have been shed. The greater coverts are also fully grown and now fully cover the white base of the secondaries (which were still exposed 2 weeks ago). Moult in the tail is underway as well.
PMS = 35 (P1=5, P2=5, P3=5, P4=5, P5=5, P6=5, P7=4, P8=1, P9=0, P10=0).
See also these images of this gull a year earlier.

below: 4cy H.501 September 04 2010, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

P8 is being shed in the left wing. P1 to P5 are new and fully grown, P6 is mostly grown, P7 is growing. In the right wing, P8 is still present.
PMS left wing: 31 (P1=5, P2=5, P3=5, P4=5, P5=5, P6=4, P7=1, P8=1, P9=0, P10=0).
PMS right wing: 30 (P1=5, P2=5, P3=5, P4=5, P5=5, P6=4, P7=1, P8=0, P9=0, P10=0).

below: 3cy H.501 June 20 2009, Leiden, The Netherlands. Picture: Maarten van Kleinwee.

P8 is being shed in the left wing. P1 to P5 are new and fully grown, P6 is mostly grown, P7 is growing. In the right wing, P8 is still present.
PMS = 18. P1-P3 fully grown.