There are exceptions, of course, but in my experience, a mature deer--esp bucks--will either avoid an area, travel it only at night, or thoroughly scour every inch of it before traveling through it if he' s been given reason to believe it' s not safe there. I' ve heard the rare stories that run counter to this, but I' ve never gotten a 2nd chance at the same buck in the same spot after he found out I was there.