Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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Caspian Gull cachinnans A / FF 1CY, 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst.
Tibia ring B/W-FF and metal ring Arnhem NLA 5.639.382 ringed as pullus Larus cachinnans on July 04 2025 at IJsselmeer (De Kreupel), the Netherlands. Ringer: Leon Kelder.
Recoveries:
26-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Thijs Horst
below: Caspian Gull cachinnans A / FF 1CY, July 26 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst.

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