RE: locater calls before daylight?
I never used it when I hunted in Mississippi, but a peacock call drives them absolutely nuts out here in Washington. Some people have good luck with a hawk screamer, too. I usually prefer to let Mother Nature get the show started on her own. The other thing to think about is letting other hunters hear your bird. If you don't have to get them to sound off to set up on them, don't do it.