Greater black-backed gull
Greater black-backed gull (larus marinus), Warsaw, Poland, September 2008 |
Greater black-backed gull (larus marinus), Sørvågen, Norway, July 2014 |
Greater black-backed gull (larus marinus), Ystad, Sweden, June 2010 |
Greater black-backed gull (larus marinus), Portalban, Switzerland, January 2006 |
Greater black-backed gull (larus marinus), Portalban, Switzerland, November 2008 |
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