Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Herring Gull argenteus J|C 1CY, June 2026, colony De Kreupel, the Netherlands.
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Tibia G-J|C and metal 5.645.882, ringed as pullus Larus argentatus on June 26 2026 at De Kreupel, Holland (5247.00 N 513.00 E).
Ringer Leon Kelder.
This is a recycle ring from Caspian Gull colony 2025.
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