Last year there were plenty of tracks but no deer visible. I decided to wait it out,all night if I had to, to see what was going on. After 20 minutes of total darkness I heard a deer snort so close to me that I felt I could touch it with my gun barrel; The sound was so loud that it sent the hairs on my neck in the full alert position. The curious thing was that I had no clue a deer was anywhere near me before the snort. I was quickly educated in how stealthly a deer is and how well they can see in the dark.