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) adult, February 14 2013, Hwajinpo, South Korea. Picture: Tom Lindroos.Please visit Tom's website for more pictures! Small gonys spot on pale yellow bill and iris with limited speckling. Broad tertial crescents and secondary tips. Upperparts grey tone about equal to graellsii Lesser Black-backed Gull. |