Mule Deer before Migration (IMAGE) University of Wyoming Caption Mule deer does and fawns stage on winter range just before beginning their spring migration north through the Wyoming Range mountains, Wyo., USA. Credit Samantha Dwinnell Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.