Heuglin's Gull (L. heuglini / antelius)(last update: |
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heuglini 4cy, May 01 2009, Tampere, Tarastenjarvi (Tara) dump, SW Finland. Image: Hannu Koskinen.4cy heuglini, aged by adult-like plumage in combination with pattern on greater primary coverts, which show extensive brownish centres. Black on P3-P10. |