And only two or three missing for exactly the same reason. People really need to stop anthropomorphising foxes. A fox will by instinct kill as much as it can and bury/hide the excess it can't immediately consume. In the wild this is not likely to be much, but human have domesticated these...
What a load of bollocks. The fox was probably disturbed while it was attacking the ducks otherwise it would have buried the surplus food after it had killed both ducks and eaten it's fill.