American Herring Gull (smithsonianus)(last update: October 30, 2015) |
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Slaty-backed Gull (schistisagus) adult, October 02 2007, Isohama, Tsuri-shihama, Japan. Picture: Shigenobu Aizawa.Please visit Aizawa's Blog for many more pictures! Last stage of complete moult, with P7 fully grown, P8-P9 growing and P10 still old. |