DT, as soon as I read your tale ( good build up by the way) I knew what this was having been caught out by the same noise only my close encounter was in daylight so less creepy. I spent a good half hour being convinced the Beast was prowling after me.
Yes it’s a mazing what the imagination conjures up isn’t it Eyespy.
Can you elaborate on your story please. Are you saying that you had the same experience with a cattle grid and on Dartmoor.?