Iceland Gull-like white-winged gulls
"barrovianus" Glaucous Gull Larus hyperboreus barrovianus ?
East Japan( Chiba/Aomori/Hokkaido )
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Adult / sub-adult / 3rd-winter
Note the Iceland Gull-like dainty impression, smaller bill, longer primaries.          ( Click on the thumbnails to view larger image )
February 17th 2003. February 2nd 2002. January 12-13th 2003
January 16th 2003. January 13th 2003. January 16th 2003.
January 13th 2003. February 16th 2002. March 16th 2003.
March 8th 2003

Juvenile / 1st-winter
Note the Iceland Gull-like bill pattern, dainty impression          ( Click on the thumbnails to view larger image )
March 25th 2002 February 22nd 2003 December 28th 2002
January 30th 2003  January 7th 2003 February 7th 2003 
January 7th 2003 March 14th 2002  March 18th 2003