Bobgobble is right. I learned that the hard way. I tired giving a few soft calls and a fly up cackle one night in the woodlot behind the house, to see if I'd get a response but I didn't. So with a chance of rain the next morning and no response from the night before, I elected to sleep in. When I got up for work I listened out back only to hear a gobbler going completely nuts back there working his way up the hollow looking for the hen.