Supersonic Bill (Ring: C9Z)
Age: Adult.
Sex: Male.
Weight 10.2kg.
First ringed 25 January 2005. Although his summer haunts in Iceland are unknown, he has wintered at Caerlaverock ever since his first arrival. He arrived this winter with mate of four years, C9U, and two cygnets V7K and V7P.
- Supersonic Bill was named by Cargenbridge School
See the swans in Google Earth