Black-tailed Gull
Black-tailed Gull Larus crassirostris
Tamagawa-river Kawasaki Kanagawa Japan
Four adult, 
one third winter
(brown-headed bird) 
with a Slaty-backed Gull. 
September 5th 2001
Adult winter, 
September 5th 2001
Adult winter, 
August 29th 2001
Third winter 
Black-tailed Gull 
with 4juvenile, 1adult 
Rufous-necked Stints, 
September 5th 2001
second winter, 
September 5th 2001


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