Slaty-backed Gull (schistisagus) / オオセグロカモメ / 큰재갈매기(last update: December 2015) |
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Slaty-backed Gull (schistisagus) 1st cycle (1CY), October 20 2011, Chiba Prefecture, Japan. Picture: Seichoudoku.Please visit Seichoudoku's blog for many more pictures! Juvenile plumage, several upper scaps replaced for 2nd gen feathers. |