Larus fuscus fuscus 4cy CHK6 May 01 2008, Tara dump, Tampere, Finland. Pictures Hannu Koskinen.
CHK6 has been ringed as pullus in Finland, on 06 July 2005 at Kuhmalahti, SW Finland.
White tips to the outer primaries hardly visible, despite the fresh plumage (median coverts and central greater coverts lacking obvious brown hue, as in gc6). Small mirror.
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