Not a terribly good picture as it was taken in a hurry to a waiting taxi, but there were lots of fox tracks in the snow through our front garden and along the pavement. And yes they are fox: you can just see impressions of the claws (which rules out cat, which would be smaller too) and they are too narrow for dog.
Interestingly they usually go over our neighbour’s low brick walls between gardens (there’s a nice trail of tracks and snow knocked off the walls) rather than go round the end of the wall which is only 3 yards away – and yes, I have seen Mr Reynard do this!
Like them or not they are an incredibly efficient rubbish disposal system. Last night Noreen put out the bones from Sunday’s oxtail casserole. No sign of the bones this morning, just lots of Reynard tracks.