| Coordinators:Albert de Jong
 Leon Kelder
 Roland-Jan Buijs
 Thijs Horst
 Merijn Loeve
 Mars Muusse
 Home Project InfoInternational trend
 National trend
 Site characteristics
 Breeding biology
 Fecundity
 Food resources
 Nonbreeding season
 Breeding species
 Hybrid scores
 Ring codes
 Future
   | Herring Gull argenteus   4|M 1CY, October 30 2023, Westkapelle, the Netherlands. Picture: Thijs Horst.Tibia  G-4|M and metal NLA 5.623.936, ringed as  pullus Larus argentatus on May 26 2023 at De Kreupel, Holland (5247.00 N 513.00 E). 
      Ringer  Leon Kelder. Recoveries:30-10-2023 Westkapelle (Zeedijk), Zeeland, NL 5.132,00 N 326,00 E colourring read Thijs Horst
 below: Herring Gull argenteus  4|M 1CY, October 30 2023, Westkapelle, the Netherlands. Picture: Thijs Horst.
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