PREDATORS -- A second wolf has been killed by northeastern Oregon authorities attempting to stop attacks on cattle, but not before another calf was found killed by wolves this week, the Associated Press reports.

The Oregon Department of Fish and Wildlife says a young female from the Imnaha pack was shot on private land Wednesday night. The first wolf was trapped and killed on Tuesday.

The department says the second wolf was with four other wolves from the Imnaha pack, including one fitted with a radio-tracking collar, in an area that has seen wolf attacks on livestock.

It comes after another calf was found killed by a wolf this week.

Oregon has taken over management of wolves moving into the state since Congress lifted U.S. Endangered Species Act protections for packs introduced in Idaho starting in the 1990s.