RE: how to locate
All depends.
I don't like using a CROW call b/c they don't seem to work that well here in South Carolina.
I rather use an OWL call. I was hunting one mid-day and blew my crow call. Nothing answered. I got out my owl call and hooted. Three different turkeys gobbled. From what point on, I left my crow call at home. THey will gobble at an owl at all times of the day.
Another good thing that I like to use is make some loud cutts with a call. I like a really high frequency all for this, like an aluminum call.
One thing that I thought was the funniest thing in the world is a guy that uses a train whistle.
The first time I turkey hunted near a train track, I seen why he used it. VERY GOOD locator call.