I live in Colorado, and there are some decent areas around Vail for shooting Wildlife. It just depends how far you are willing to travel. In Vail Village, your best bet is to take the gondola up the mountain and walk some of the trails. If you're willing to drive a little bit and get away from all the traffic, i recommend either the Red Cliff area off of State Highway 24, or Trough Road between State Highway 131 and the town of Kremling. Trough Road follows The Colorado River through a rustic canyon. Not sure how effected the area is though from the major forrest fires last summer though.