Table 1: Causes of direct mortality proposed to limit free-ranging bighorn sheep populations.

Cause of direct mortality Geographic distribution of determinant Locations where determinant reported Selected references Hunting Range-wide Range-wide [27, 28] Predation   Range-wide Alberta, Canada, and Montana [29, 30] Arizona [31, 32] California [33–36] Colorado [27] Montana [37] New Mexico [38, 39]