Yellow-legged Gull atlantis
Yellow-legged Gull michahellis
Yellow-legged Gull lusitanius
Armenian Gull armenicus
Caspian Gull cachinnans
Herring Gull argentatus & argenteus
American Herring Gull smithsonianus
Heuglin's Gull heuglini
Lesser Black-backed Gull graellsii & intermedius
Lesser Black-backed Gull fuscus
Great Black-backed Gull marinus
Iceland Gull glaucoides & kumlieni
White-eyed Gull leucophthalmus
Pallas's Gull ichthyaetus
Common Gull canus
Mediterranean Gull melanocephalus
Audouin's Gull audouinii
Slender-billed Gull genei
Black-headed Gull ridibundus

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Peter Adriaens, Gentbrugge, Belgium
Ruud Altenburg, Amsterdam, Holland
Tim Audenaert, St-Gillis-Waas, Belgium
Nicola Baccetti, Bologna, Italy
Amir Ben Dov, Tel Aviv, Israel
Roland-Jan Buijs, Oud-Vossemeer, Holland
Rui Caratao, Lisboa, Portugal
Alain Fossé, Angers, France
Chris Gibbins, Aberdeenshire, Scotland
Delfín González, Madrid, Spain
Antonio Gutierrez, Ferrol a Coruña, Spain
Morten Helberg, Oslo, Norway
Albert de Jong, Alblasserwaard, Holland
Maarten van Kleinwee, Leiden, Holland
Hannu Koskinen, Nokia, Finland
Nils Helge Lorentzen, Vanse, Norway
Bert-Jan Luijendijk, Oud-Beijerland, Holland
Gabriel Martín, Madrid, Spain
Bruce Mctavish, St John, Canada
Avi Meir, Eilat, Israel
Ies Meulmeester, Goes, Holland
Mars Muusse, Voorhout, Holland
Theo Muusse, Dordrecht, Holland
Jean-Michel Sauvage, Boulogne/Mer, France
Pim Wolf, Vlissingen, Holland