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Herring Gull (argenteus) Y.CAT adult, May 20 2016, Forteiland, the Netherlands. Picture: Maarten van Kleinwee.Ringed as adult in breeding season 2016 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team. Found dead in 2021. below: Herring Gull (argenteus) Y.CAT >4CY, May 20 2016, Forteiland, the Netherlands. Picture: Maarten van Kleinwee. |
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