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Black-headed Gull
>> Black-headed Gull M[3653228] Arnhem
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Black-headed Gull M[3653228] Arnhem
This Black Headed Gull was marked in Amsterdam as >3CY male on March 8, 2008. It must be minimally 15 years old at the time of the Leiden observation.
Kokmeeuw >15CY
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