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: Adult Black-headed Gull, December 25, 2010, Maresingel, Leiden, The Netherlands (52.164N, 4.498E). Photo: Maarten van Kleinwee.
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