what kind of stand are you in? It could be the concealment of your stand as well. Make sure you have enough cover and backdrop so you aren't sticking out like a sore thumb. I've noticed sometimes when I move a stand in a "iffy" location, they tend to react strange to it. I use good scent control and have had deer bust me and react in this manner when I had the wind completely in my favor. They just knew something was up. I guess if you walked into your home and someone rearanged your furniture you'd think something was up too.