Yellow ring with a black three numeric code.
note 1: Large project ongoing since 2006 throughout Yorkshire counties, Derbyshire and Cleveland, working in close conjunction with the Sorby Breck Ringing Group.
note 2 : also infor. to be found on Yorkshire Swan Rescue Hospital : http://www.ysrh.org.uk/
note 3 : Darvic rings added to left tarus and metal 'M' rings added to right tarus.
note 4 : More than 3,000 adult birds and pulli rung since the commence of project, including colour marking a number of rehabilitated Mute Swans