G & H.
Cool link. One thing he observed that I've noticed with whitetails when they herd up in the winter is the amount of vocalizations they make. I sometimes travel up to Ohio to bow hunt in late January, and when deer are in large herds, 12+ animals, I usually hear them "talking" way before I see them. I wonder if it has to do with the lack of pressure, if it's a herd thing, or if they're just glad to see each other?