Herring Gull- Zilvermeeuw (argentatus & argenteus)(last update: |
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Herring Gull plumages: hg 1cy July hg 2cy January hg 3cy January hg sub-ad January hg ad January |
Herring Gull 2CY, January 16 2018, Katwijk, the Netherlands.Plain underwing coverts.
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