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Lesser Black-backed Gull (graellsii) Y.DHK adult, 2021, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.Ringed as pullus on June 02 1998 at Middensluiseiland, IJmuiden, by Fred Cottaar ringing team. Logger at bird attached in 2021: GPS logger #5630. Badly attached, came off within weeks. below: Lesser Black-backed Gull (graellsii) Y.DHK 24CY, July 09 2021, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.
below: Lesser Black-backed Gull (graellsii) Y.DHK 24CY, June 24 2021, IJmuiden, the Netherlands. Picture: Maarten van Kleinwee.Within 4 weeks, the logger already came off.
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