I settled in, and wasn't seeing anything other than squirrels, but as dusk approached, the wind died and started to swirl, making the odds of success go down a bit.
It wasn't long before I heard some ruckus to the South followed by slow but steady steps. I figured a deer had hopped the fence and was heading towards the drainage. Before long I saw a good buck enter from the SE edge of the drainage and head North. This would put the wind in my favor, but he got stiff-legged and stopped for a second, them slowly turned towards me to head back south. Not good, and in seconds he would have my wind.