RE: scouting?
When your out there looking for sheds you could keep an eye out for the birds .
Look around big trees for feathers and droppnings , pine trees are good this time of year.
Look for water source's and oak groves not to mention meadows , fields and clear - cut areas.
As the season gets closer , try to get out before first light and listen for the fly downs .
Try to fallow them and find out where they go without spooking them.
I wouldn't do any calling at all but just before your hunt use a crow call at dusk to locate there roosting area.