I am privvy to view deer year round in my back yard-I mean "IN MY YARD" & have a Deer 3-d target 25 yards from my Deck-I have video of Big Bucks, fawns & Does coming right past it & paying no attention-I think they know it is always there BUT when I set a decoy out by the house (which many walk next to) they skirt out around it & keep watching.
We can watch the deer anytime they are in the yard (20 yds or less) but as soon as the door latch clicks-they move into the woods. This pic is 10 feet from my sliding glass door & deck. I have the best place ever to live.