Gray wolves have returned to California, a state where they were largely eliminated about a century ago. Their reappearance is reshaping ecosystems and landscapes in the most populous state in the country, and it is testing relationships between conservationists, ranchers and wildlife managers. Mongabay’s Spoorthy Raman has been examining how the change is unfolding ([1]).
An unexpected return
State officials date the first returning wolf to 2011, when an animal wandered into California by chance. The first gray wolf wandered back into California by accident in 2011, according to the state. Earlier, the species had roamed the landscape for thousands of years before disappearing. Gray wolves (Canis lupus) roamed the Californian landscape for thousands of years until the last one was shot in the 1920s.
The population has grown well beyond that first lone animal. Wildlife officials now track a number of packs that are spread across the state, with the largest concentration in the north. The state is now home to 12 identified packs of gray wolves, primarily concentrated in Northern California, up from nine packs. Most wolves live in the northeast, though one pack has settled in the southern Sierra Nevada. Most of California’s wolf population lives in the northeast portion of the state, with one pack residing in the southern Sierra Nevada.
The wolves are also appearing farther from their established range. In February, one was recorded in Los Angeles County for the first time in more than a century, according to state wildlife reports. Although a gray wolf was recorded entering Los Angeles County for the first time in more than 100 years in February, there have been no recorded wolf attacks involving livestock in Southern California this year.
The cost for ranchers
For many ranchers, the wolves’ return is measured in lost animals. Northstate rancher Mary Rickert has described losing roughly 40 calves, each worth about $1,500, which has made it hard to maintain her herd. “We have to grow our herd from within, so it’s been extremely difficult for us,” she said.
The overall numbers, however, are small compared with the size of the state’s livestock industry. The California Department of Fish and Wildlife (CDFW) has documented 142 cases of probable or confirmed cattle killed by wolves between 2015 and 2024. That is 0.002% of California’s nearly 7 million livestock. Losses have risen in some areas, though. A single pack in Sierra Valley was responsible for a large share of the damage in 2025, which led officials to take action.
- Four wolves from the Beyem Seyo pack were euthanized in late 2025 after these wolves were responsible for 70 total livestock losses between March and September.
- Early in 2026, investigators completed 47 livestock investigations between January and March, according to CDFW’s March update ([2]).
- California introduced a compensation program that pays ranchers for direct and indirect losses from wolves as a way to mitigate conflicts, but ranchers say this program isn’t scalable with expanding wolf numbers.
Cost estimates are also contested. Some outlets have cited a University of California, Davis study that put the expense of a single wolf between $69,000 and $162,000, but that wasn’t validated by peer review, so those figures should be read with caution.
Where coexistence stands
The legal framework limits how officials can respond. Gray wolves are protected as endangered species under both state and federal law, the California Endangered Species Act and the federal Endangered Species Act. That protection narrows the options available when wolves repeatedly prey on livestock, and ranchers have pushed for more flexible tools.
Ranchers have experimented with their own deterrents. Ranchers have tried various methods to prevent attacks, including flags and drones, but Rickert said those efforts tend to lose effectiveness over time. State researchers have also considered options such as permits for “less-than-lethal-harassment,” such as noise or motorized equipment, to deter predators.
Officials frame the return as a success in ecological terms. CDFW has stated that “Wolves are here in California and that is an amazing ecological return.” That view sits alongside the frustration of livestock producers, and the outcome of the debate will likely depend on whether compensation, deterrence and population management can keep pace with a growing wolf population.
What comes next
California’s wolves are no longer a rare curiosity. They are a working presence in forests, grazing lands and rural communities, and they have forced the state to weigh conservation goals against the livelihoods of people who share the same land. Whether the coexistence efforts succeed will shape how other states handle similar comebacks, and the next few years of population and livestock data will show whether the balance holds.
