Purple 55

Visiting a very long established nest site in a valley with at least 3 pairs in close proximity, one of the landowners told me her regular kite visitor for scraps during the icy conditions of the last few weeks carried the tag Purple 55 so a bird from 2007 and one of the likely breeders in the valley. 
I spent a happy couple of hours watching the territorial jousting and posturing of the 'neighbours' and will have to go back to see if they both manage to nest successfully.