Cetti's Warbler has only recently colonised our area. We first ringed one in 1995 then singles in 2007 & 08. But from 2009 on we averaged 5 or 6 annually until last year we ringed 16. To date we have only caught 39 birds but we have had two recoveries and recaptured 2 birds ringed elsewhere.
The most outstanding of these is shown on the map it was ringed at Leighton RSPB on March 13th 2010 and found breeding at Farlington Marsh Hampshire on 25th April 2011 and again on several dates over the next two years. It is one of the longest distance recoveries within Britain.
All these movements are part of the dispersive tendency of young birds in this species which has contributed to the spread of the species in Britain. Once established as a breeder they appear to be sedentary- we have had retraps of two birds 3 and 4 years after ringing at Leighton Moss.