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Wildlife biologists ramp up efforts to avert more wolf kills Wolf prints are visible where cattle were killed on the Nicholson Ranch in the Wood River Valley. Photo by Lee Juillerat Sunday Oct 23, 2016 at 12:01 AM Oct 23, 2016 at 9:34 AM By Lee Juillerat for the Mail Tribune Wildlife biologists regard the killing of four cattle in the Fort Klamath area of Klamath County as "unusual" and "disturbing," but they believe the wolves pose no threats to humans and the biologists are ramping up nonlethal efforts to stave off future livestock losses. Harming wolves is prohibited by federal law in the western two-thirds of Oregon, where wolves are protected as endangered species. "We don't even want to talk about lethal measures," said John Stephenson, a U.S. Fish and Wildlife Service wildlife biologist. "What we're trying to do is stop it with nonlethal measures. When you have a flurry of incidents, you don't jump to lethal measures." He believes the Rogue Pack, which includes the wolf known as OR-7, is responsible for the four confirmed kills. But none of the wolves in the pack, which includes OR-7's mate and wolves born the past three years, have radio collars that help track the location of wolves. "We've been looking to trap this pack for a while," Stephenson said of efforts to capture and collar a Rogue Pack wolf, noting they've been seen in the Wood River Valley since 2014. "It would help us know when they're down here." Stephenson, who returned to the area Thursday to investigate the most recent wolf kill, said the problem will be temporarily eased in coming weeks as the final cattle are trucked out of the valley to winter pastures, mostly in Northern California. Upwards of 35,000 head of cattle are shipped to graze on Wood River Valley pastures each spring. "We need to do something ASAP. Now we have to ratchet up the effort," Stephenson said, noting he and Oregon Department of Fish and Wildlife biologists have camped for several nights and built fires near remaining cattle to discourage wolves. Various nonlethal methods are being investigated. Strobe lights were set up near the cattle, but the most recent wolf attack happened near the lights. He said placing red ribbons on fences near grazing areas is probably impractical because "these are big pastures." Along with the Rogue Pack, a Silver Lake Pack is known in nearby northern Lake County, and there are wolves known as the Keno Pair. Individual wolves include OR-33, which is believed to have killed two goats on consecutive nights near Grizzly Peak east of Ashland. It was recently tracked near Roseburg. Another lone wolf, OR-25, is the animal responsible for injuring three 550-pound calves on the Yamsi Ranch east of Chiloquin last fall. "And there are some probably some we don't know about," Stephenson said. He and Elizabeth Willy, senior wildlife biologist with the service's Klamath Falls office, met with Bill Nicholson, owner of the Nicholson Ranch, where the killings occurred, and Butch Wampler, who manages the cattle. The biologists emphasized no wolves have been reintroduced to Oregon and said genetic studies show Oregon's growing population originated from wolves originally from Idaho and Yellowstone National Park. "Neither the state nor the feds are moving wolves anywhere in the state of Oregon," said Tom Collom, an ODFW wildlife biologist based in Klamath Falls. He said DNA studies show OR-7's mate was from the Snake River Pack. All three biologists said wolves pose no threat to humans. "I think it's overplayed too much," Collom said. "Close encounters, those happen from time to time. The bigger issue is with livestock." One reported encounter involved a rancher in the Swan Lake area northeast of Klamath Falls. While feeding livestock on an open pasture, he jumped off his tractor and saw a wolf, identified as OR-33, standing a short distance away. "Spooked the heck out of him," said Collom, who suggests "you always want to be aware of your surroundings." He praised ranchers, noting they are changing some practices, such as moving cattle to safer pastures and shipping them out of the valley earlier. "They're adapting to this." Collom said other ways to discourage wolves include disposing of animal carcasses and burying them at least 6 feet deep. In cases where wolf kills are suspected, he said ranchers should immediately cover animals with a tarp, call the local ODFW office, and not disturb the area so that biologists can check for tracks, scat and signs cattle might have been dragged. "The sooner we can get to the scene the better chance we have to make a determination," Collom said.  Because wolves in the western two-thirds of Oregon are still listed as federally endangered, he said, ranchers cannot shoot a wolf even if it's seen attacking livestock, something he knows frustrates ranchers. "If you see them out there, there's nothing you can do," Collom said. While he believes shipping out cattle for the winter provides a reprieve, Collom, like Stephenson and Willy, say a plan must be developed to eliminate wolf depredations for next year's grazing season. Collom believes wolves target Wood River Valley cattle, noting, "A wolf has to make a decision if he's going to chase an elk around or go into a pasture. ... If you had told me five years ago we would be dealing with these kinds of situations, I would have told you you're nuts."