Larus canus
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Juodkrante, Neringa, Lithuania 10/09/2007
Kopenhagen, Denmark 16/01/2009
Hungary 25/12/2011
Witoszówka Reservoir, Swidnica, Poland on 07/01/2013
Krongresscenter Villach/Drava, Carinthia, Austria 20/02/010
Preila, Neringa, Lithuania 17/09/2006
Krynica Morska, Poland 20/11/2008
Elk, Poland 21/12/2011
Siofok, Hungary 30/12/2012
Bergen, Norway 07/03/2005
Galaway, Ireland, UK 25/12/2004
Groningen, Netherlands 07/12/2010
Gdańsk, Poland 15/12/2008
Vistola River Mouth, Gdansk, Poland 28/08/010
Leiden, Maresingel, Netherlands 11/02/2010
Klaipeda, Lithuania 29/12/2008
Witoszówka Reservoir, ?widnica, Poland 10/10/2012
Portalban, Switzerland 08/01/2008
Elk, Poland 13/12/2011
Ueckermunde, Mecklenburg-Vorpommern, Germany 11/01/2009
Gdańsk, Poland 02/03/2009
ringing in POLAND
Szczecin, Zachodniopomorskie, Poland 18/01/2006
Gdynia, Poland 11/01/2011
Gdynia, Poland 19/02/2009
Gdańsk, Poland 15/12/2008
Hryniewicze, Poland 01/04/2011
Krynica Morska, Poland 16/02/2011
Gdansk, Poland 15/01/2011
Gdynia, Poland 11/01/2011
Krinica Morska, Poland 19/03/2009
Kopenhagen, Denmark 16/01/2009
Kopenhagen, Denmark 16/01/2009
Gdansk, Poland 12/01/2011
Gdansk, Poland 25/01/2011
Kopenhagen, Denmark 16/01/2009
Hel, Poland 02/2006
Naerum, Denmark 04/03/2006
Gdańsk, Poland 16/01/2009
Gdańsk, Poland 15/12/2008
Neuchâtel, lac de Neuchâtel, Suisse 14/03/2011
Gdynia, Poland 09/2008
Szczecin, zachodniopomorskie, Poland 08/01/2008
Elbląg, Poland 26/11/2008
30/03/2011
Elk, Poland 13/12/2011
Elk, Poland 05/12/2011
Maltanskie lake, Poznan, Poland
Vistola River Mouth, Gdańsk, Poland 31/08/2010
Gdańsk, Poland 01/12/2008
more information about this project here