Black-headed Gull Chroicocephalus ridibundus(last update: |
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Moderators: BHG 1cy May BHG 2cy January BHG adult January
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Below: Second-calendar year Black-headed Gull, 23 July 2013, Leiden, The Netherlands (52.161N, 4.504E). Photos: Maarten van Kleinwee.Individual moulting to basic plumage. The inner greater coverts have been dropped, all first-generation secondaries are still present in the right wing (in the left wing, 1 secondary is missing). P1 - P5 are fully grown, P6 is almost fully grown, P7 is missing, P8 - P10 are old. Primary moult score: 30 (5555541000). The central tail feathers have been dropped, the hood is about 50% complete.
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