Here in the upper Midwest, we are brink of an explosion. For the most part, the full-bore chase phase has not begun. But the bucks--including some of the mature deer--are getting very active. They are on their feet, roaming their core areas, hitting rubs and scrapes and looking for that first estrous doe. My good friend Mitch Hagen was hunting in southern Iowa over the weekend and reported several large bucks "shadowing" does. This is a fascinating behavior to me; the doe is clearly not "in" yet, but the buck senses she is getting close. The buck does not dog her or chase her, but simply follows and keeps track of her movements.