Perhaps the " cover of darkness" doesn' t actually make the hunter invisible on the way to the stand but I' ve walked through feed fields plenty of times with deer in the fields watching me walk to my stand and then continue to feed. I' m not a deer and nobody I know is a deer so as far as I know there is nobody that really knows what a deer sees. I' m sure they see better in the dark than we do but in my opinion it' s not like they have " night vision" . I think they do feel more secure for whatever reason which is why I think it is important to use the darkness as a time to move about to and from stands in the deer woods. They let me get very, very close to them in the dark. Last year I was arms length from a doe in the dark and it was not until she made a turn to come down the trail I was on that she saw me and spooked...she was just 3 yards away. I don' t think she would have done this in the daylight. I do agree that one should be as careful walking to the stand in the dark as in the light but I think you are overestimating the power of the deer' s conical capacity.