American Herring Gull (smithsonianus)(last update: October 30, 2015) |
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Slaty-backed Gull (schistisagus) 1st cycle (1CY), September 16 2009, Hokkaido, Japan. Picture: Hannu Huhtinen.Juvenile plumage. Much dark in tail and already overall 'washed-out' mud-brown impression, however, by September white fringes on scapulars still present. |