56091 passes Bourton on 28 August 2013 with the 5Z56 11:40 Wembley to Bristol Barton Hill, conveying a single Chiltern Railways Mk 3 coach. Typically this was during a cloudy spell, although the sun is just starting to come out weakly, at least on the loco. Annoyingly the sun was out on the other side of the bridge, and it remained in this bizarre state, with sun on one side, and cloud on the other for well over ten minutes!