I was deer hunting in Unit 7 last weekend with my boys above the Laramie river valley. Sunday morning we heard a bull bugling from across a valley. At first I thought it was some of the guys who were bowhunting in the unit. My youngest (13 y/o) has been playing with my cow calls for the last 5 months driving us all nuts, so he lets out some cow calls and a few calf calls to see what would happen. We had a smaller 5x5 come on a half mile trot across open ground to find us. He came within 30 yards before he noticed both my boys just vibrating with excitment.