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 V.C, March 11, 2011, Westerpark, Amsterdam, the Netherlands (52.387N, 4.877E). Photos: Maarten van Kleinwee
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