Keywords: Cygnus cygnus Oulu 20120401b.JPG 65 023208618164 25 443090438843 fi Laulujoutsenia Cygnus cygnus Hartaanselällä Oulussa en Whooper swans Cygnus cygnus in the estruary of river Oulujoki in Oulu 2012-04-01 own Estormiz cc-zero Uploaded with UploadWizard 2012 in Oulu April 2012 in Finland Birds of Oulu Cygnus cygnus Taken with Canon EOS 600D |