juvenile Vega Gull and Slaty-backed Gull
11th, Octorber 2001 Sakawagawa-river Odawara Kanagawa Japan

Vega Gull

Vega Gull

Vega Gull (left), Slaty-backed Gull (right),
Slaty-backed shows browner, more uniform tint. Vega Gull looks slimmer.
 


Vega Gull (left), Slaty-backed Gull (right)

Slaty-backed Gull (left),  Vega Gull (right)

  Wing coverts of Vega Gull look more contrasty compared with Slaty-backed Gull. But its belly and flank are uniform brown unlike mongolicus .


Vega Gull
 
 

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