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Herring Gull (argenteus) Y.CJS adult, May - June 2017, Heemskerk, the Netherlands. Picture: Mars Muusse & Maarten van Kleinwee.Ringed as breeding adult in season 2017 at Forteiland, IJmuiden. Ringed by Fred Cottaar ringing team. below: Herring Gull (argenteus) Y.CJS >4CY, June 02 2017, Heemskerk, the Netherlands. Picture: Mars Muusse.below: Herring Gull (argenteus) Y.CJS >4CY, May 29 2017, Heemskerk, the Netherlands. Picture: Maarten van Kleinwee.P1 growing, P2-P3 missing. |
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