Train spotting Siskins?

The Dowager Duchess of Dobcross does it again. The disused trackbed of the Delph Donkey runs north south quite close to Margaret's garden bringing a stream of juicy migrants onto her feeders; recent Siskins are a bit special. V605953 ringed in her garden in Aug 2008 was controlled in Baldwins Hill East Grinstead March 2009, passing on its way X281045 ringed at Baldwins Hill in Feb 2009 and controlled in Dobcross (east of Oldham) April 2009. Where did they go from East Grinstead? My feeling is that they travel annually to East Grinstead hoping to greet Bluebell's first steam train into the town since 1957. If you have a better idea let me know!