Officials in Montana, Idaho and North Dakota are on alert for feral pigs crossing the border from Canada, where the population is increasing steadily.
A proposal by the U.S. Department of Interior to delist gray wolves from endangered species protection is drawing mixed reactions.
The quota for harvesting wolves near Yellowstone National Park was met and exceeded, ending the season.
Montana recently rejected a plan to keep elk that are within a designated brucellosis surveillance area into contact with other groups from outside the area.
Montana wildlife regulators rejected a proposal to double the allowance of wolves that can be hunted or trapped near Yellowstone.
Authorities are looking for a grizzly in Montana's Flathead National Forest after it killed a mountain biker earlier this week.
Complaints by outfitters and hunters over predators impact on elk have prompted Montana officials to triple gray wolf harvest.