Turkey scouting questions

[Mr. 16 gauge]

Well, I drew a tag for this year....I guess I didn't need too much luck; there were 529 left out of a possible 600 after the draw!
It is for the third week of the season, but it was the only time I could get off, so...........beats working, that's for sure!

Having only turkey hunted a couple of times in the past, I'm wondering what my best bets would be for scouting, i.e. what areas? I am hunting state land, so I don't know if all that hunting pressure the first two weeks should make me look in certain spots or not. I have scouted the area before, so I kinda know where to look, but I'm wondering if I should concentrate on different areas than I have in the past.
I have a whole bunch of options: marshy areas, hardwoods, planted corn fields that were left fallow or only partially harvested, pine stands, open fields, and a mixture thereoff.
Also, one specific question: Do turkeys use the same roost tree routinely year after year?
Thanks in advance............