Hot, Dry, and Windy are three things you don't want when hunting upland game. 2015-2016 opening day and weekend for Kansas and Oklahoma had all three. The birds were flushing wild and out of range in both states.
Back in the day, when I was hunting draws (erosion gulleys) in Nebraska, I would carry a hawk whistle on hot and dry days. If we saw the pheasant trying to leave the draw as we approached I would hit the whistle for three quick blast. Usually, but not always, that would cause the bird to go back into the cover of the draw. However, they might run further down the draw and flush out of range of the gun. The hawk whistle was the only thing that seemed to work, even then it wasn't 100% effective.