nervous fox? video

some bait was put in front of the trailcam which this fox found the next morn.however it acted nervously and didn,t actually eat it seemingly alert to something else that was going on out of view.i might add that this is in an area,near horsham, where eaten fox carcases have been found 3 months apart and when set ,the trailcam has revealed no nightime pictures whatsoever which i think is extraordinary.