Wolf attacks on livestock have climbed to a new high in Minnesota as ranchers reported losing more calves, cows and other animals to the predators in 2024 than any year since records began in the 1980s.
Ranchers made 252 claims of wolves killing livestock last year, compared with the 10-year average of 174 claims a year, according to data from the U.S. Department of Agriculture (USDA). The losses, as usual, were primarily young calves.
Wisconsin also saw high numbers of complaints.
Minnesota’s wolf population, estimated at 2,900, remained relatively unchanged last year. Wolf numbers here have hovered between 3,200 and 2,200 since the late 1990s.
The extremely warm winter in early 2024 likely increased the pressure on cattle from wolves, said Dakota Bird, a district manager and biologist for the USDA’s Wildlife Services.
“Snow really slows deer down and makes it much easier for wolves to catch them,” he said. “So when you have an early spring and not much snow all winter, deer are not as easily accessible and wolves will sometimes key in on cattle a little sooner than normal.”
Wolves typically do the most damage to livestock in late April, when calves are born and at their most vulnerable, and in August, when wolf pups are old enough to leave their dens to hunt.
Last year was an outlier in that high numbers of wolf conflicts also happened in January and February, when wolves are typically catching plenty of deer, Bird said.