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Ad. winter Slaty-backed Gull
Larus schistisagus
Sakawagawa-river Odawara kanagawa Japan
February 15th. 2001


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 Note the dark gray ( thus not real black)
 underside of primaries.

A Slaty-backed Gull with a Vega Gull (rear)
and a Black-tailed Gull(lower)

Note the broad white trailing edge in Slaty-backed. 

Back



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