ORIGINAL: superstrutter
Some of my best hunting has occured after 4:00 p.m. I killed one of my birds this year at 5:20. You can bump birds anytime you enter the woods during the day. I wouldn't try setting up under the roost just yet. You may be able to call in a love sick gobbler before he goes to roost. You may want to set up a couple hundred yards off the roost. That way if the bird doesn't come by you on his way to roost you can slip out without spooking him.
Agreed. I know where a few of these turkeys have been roosting and where they are in the middle of the day. I go in and setup about 4 or 5 pm and I have had no trouble getting one to come within 30 yards of me. Called three in two weeks ago and called another one in yesterday. I figure if they they hear a "hen" the direction they are roosting, why not get going to the roost a little faster? Best of luck.