With adult summer Slaty-backed Gull(right).Note the small bill than SBG.
Adult Winter/summer Thayer's Gull @Larus thayeri
With adult summer Slaty-backed Gull(right).Note the small bill than SBG.
Note the black marking on P5 and dark eye. Photo by Yuki Yamamoto.
Photo by Yuki Yamamoto.
Adult Nelson's Gulls were almost pale eye. Photo by Yuki Yamamoto.
«For comparison adult Nelson's Gulls. Note the iris color.
pallidissimus~vegae pallidissimus~vegae pallidissimus~vegae pallidissimus~vegae pallidissimus~vegae pallidissimus~vegae
From Nemuro Hokkaido Japan. March 16.
