Just been out this weekend on my syndicate. This is a mature mixed woodland and stalking is not easy due to many factors. I had been out for about 4 hours and was starting to loose light so decided to make my way back to the vehicle. I then spotted movement at the side of one of the tracks and took cover. Binos confirmed it was a doe. So I planned my stalk and made it to about 80 yards where I took up a good position with good backstop, just as the doe started to cross the track - an absolute sitter. Down behind the scope Ready to shoot and found it had fogged up. By the time I cleared it the doe was in cover on the other side of the track.
Oh well one that got away