Gulls in NW Europe
(last update: September 25, 2011
Herring Gull 12+cy H-50949 (argenteus) June 2010 - September 2011, Leiden, the Netherlands. Pictures: Maarten van Kleinwee.
Ringed as adult (4+cy) in winter, on January 07 2004, Harelbeke, Belgium.
below: adult H-50949 (argenteus) September 03 2011, Leiden, the Netherlands.
Adult Herring Gull, moulting to winter (basic) plumage. Right leg seems to be injured, a slight limp could be detected when it was walking. P5 / P8.
below: adult H-50949 (argenteus) June 18 2011, Leiden, the Netherlands.
Adult Herring Gull, moulting to winter (basic) plumage.
below: adult H-50949 (argenteus) July 23 2011, Leiden, the Netherlands.
Adult Herring Gull, moulting to winter (basic) plumage. P1 is fully grown, P2 has been dropped. PMS=6 (P1=5, P2=1, P3=0, P4=0, P5=0, P6=0, P7=0, P8=0, P9=0, P10=0).
below: adult H-50949 (argenteus) August 06 2011, Leiden, the Netherlands.
Adult Herring Gull, moulting to winter (basic) plumage.
below: adult H-50949 (argenteus) July 30 2011, Leiden, the Netherlands.
Moulting to winter (basic) plumage. P1 is fully grown, P2 and P3 have been dropped. PMS=7 (P1=5, P2=1, P3=1, P4=0, P5=0, P6=0, P7=0, P8=0, P9=0, P10=0).
below: adult H-50949 (argenteus) August 14 2011, Leiden, the Netherlands.
Adult Herring Gull, moulting to winter plumage. While P4 is clearly visible in the left wing, there is no trace of it in the right wing. P5 has been dropped though in both wings.
Moulting score left wing: 20 (P1=5, P2=5, P3=5, P4=4, P5=1, P6=0, P7=0, P8=0, P9=0, P10=0).
Moulting score right wing: 17 (P1=5, P2=5, P3=5, P4=1, P5=1, P6=0, P7=0, P8=0, P9=0, P10=0).
below: adult H-50949 (argenteus) July 17 2011, Leiden, the Netherlands.
A different moulting pattern can be seen in both wings: in the right wing, P1 is fully grown, P2 is almost fully grown and P3 is missing. In the left wing, P1 and P2 are fully grown and P3 is just visible. Moult score: 10 (P1=5, P2=4, P3=1, P4=0, P5=0, P6=0, P7=0, P8=0, P9=0, P10=0).
below: adult H-50949 (argenteus) June 12 2011, Leiden, the Netherlands.
below: adult H-50949 (argenteus) June 05 2011, Leiden, the Netherlands.
