We had some get out over the summer from a farm nearby, belted duchesses. As I was going to my stand opening morning of bow, they were under it and I stampeded them. I saw 2 deer that morning, and missed one, a 5 point at 20 yards, right from where they had gone off. They do affect, however. I only saw 2 more deer in that field the whole year. The same field they frequented that whole summer.
BigBuck95