Thanks for the replies. I'm surprised that so few of you hear grunts during the season. The grunts I heard were actually rather loud. I'm guessing the deer were 70-100 yds from me, and I could hear them fine. But what puzzles me is why I only hear them from December on. I'm guessing its a social grunt, and that's why they respond to me and more join in when I start grunting. It is awesome when they do grunt back though. It always get my heart going when I hear them grunting around me.