these guys know what they are talking about.
After hunting gun seasons for so long and because of college and high school not being able to hunt as much archery as I wanted, this was my first year at a lot of hunting in early archery season, and I have one word.......frustrating, but I did learn a lot from this season which I will use next year.
Hunting from the ground with a bow is a whole new ball game. Like has been said before, the wind is a very big part, but even if the wind is in your favor, one slightly off movement and your morning can be shot. One thing you will have to amke sure you can do from the ground is pull your bow back smoothly and in a fluid motion, not as herky jerky as i did this season and spook a couple of deer, lol
Natural cover is a great idea, whatevert you can do, whether it be piling up limbs, sitting in deadfalls, etc. but just make sure you have enough room to pull your bow back and enough space to get an arrow through.
Most of the other info has been covered in here, lol slow movements, the wind, early season scouting, patience.

Jennings Buckmaster Bow
.50 Cal Thompson Center Renegade