Age Class:
Herring Gull 1cy
Herring Gull 2cy
Herring Gull 3cy
Herring Gull 4cy+ & ad
Individuals:
Herring Gull with some michahellis lookalike traits - 1cy
Herring Gull with some michahellis lookalike traits - 1cy
Herring Gull with some michahellis lookalike traits - 1cy
Herring Gull with some michahellis lookalike traits - 3cy
Herring Gull with some cachinnans lookalike traits - 3cy
Herring Gull with some smithsonianus lookalike traits - 3cy
Themes:
Herring Gull covered with oil
Herring Gull with dark iris
Herring Gull with yellowish legs
Herring Gull with deformations or aberrant bare part colours
Herring Gull with colour aberrations or leucisme - 1cy
Herring Gull with colour aberrations or leucisme - 2cy
Herring Gull with colour aberrations or leucisme - ad
Herring Gull with leucisme - ad
Herring Gull with leucisme - ad
Herring Gull with leucisme - ad
Herring Gull with sooty-brown 2cy plumage
Herring Gull with extensive dusky head-streaking
Herring Gull with extensive dusky head-streaking
Herring Gull with extra dark upperparts and a "string of pearls"
Herring Gull with extra dark upperparts - 2009
Herring Gull with extra dark upperparts - 2010
Herring Gull with extra small white apical spots
Possible Caspian Gull x Herring Gull hybrids
Caspian Gull x Herring Gull, 1cy, 30.12.2010, Odense Kanal
Caspian Gull x Herring Gull, ad, 30.10.2007, Aarhus East Harbor
Caspian Gull x Herring Gull, ad, 2.-3.12.2010, Aarhus East Harbor
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