yeah turkeys are very habitual, in the fall i can set my watch by them (that's to say they stop by my feeder at the same time everyday unless they are disturbed). However, they get a little less predictable in the spring. i'd need to know more about the area and what time of day it was, but i'd say you got a pretty good chance of spotting him in the area again. if its wooded and you saw him early in the morn or late in the afternoon, there's a strong chance he's roosting up there.
as for call types, yeah just a good yelp this time of the year ought to get him to gobbling. But why just try yelps???? This is a great learning scenario for a young hunter. work in some clucks, cutts, purrs and cackles and really get him worked up. Don't know what those sound like? No problem. Check out wildturkeyfederation.com, they will have a full library of audio of real turkeys calling.
"That's a big bird." "Really i thought he'd be more yellow!"