Our Reed Warbler RAS (Re-trapping Adults for Survival)at Leighton Moss is going well. To date we have caught 71 adults. Of these 43 were already ringed in previous years. The breakdown when first ringed is detailed below-
Year of Ringing Number
Of the 19 from 2009 seven were ringed as adults and 12 as juveniles.
The oldest bird is eight year old with the two 2004 birds both ringed as adults so are at least seven years old. Our oldest Reed Warbler to date was just short of ten years.
This is the 14th year of our study and we average around 165 adults a year but with the rest of June and the whole of July yet to go it looks as though we are on track to achieve this total. Most adult birds have left by the middle of August.