C.R.S. § 35-41.5-111

(1) Any alternative livestock not recovered by its licensed owner within seventy-two hours after escape shall be reported to the division of parks and wildlife in such manner as required by the division of parks and wildlife. (2) Any escaped alternative livestock killed by a licensed hunter in a manner which otherwise complies with title 33, C.R.S., and any rules promulgated pursuant thereto, shall be deemed a legal killing and neither the licensed hunter, the department, nor the division of parks and wildlife shall be liable to the owner for such killing.