SALEM, Ore.—State wildlife biologists counted 137 wolves in Oregon this past winter, a 10 percent increase over last year’s count of 124, according to the Oregon Wolf Conservation and Management 2018 Annual Report at odfw.com/wolves.

This annual count is based on verified wolf evidence (like visual observations, tracks, and remote camera photographs) and is considered the minimum known wolf count, not an estimate of how many wolves are in Oregon. The actual number of wolves in Oregon is likely higher, as not all individuals or groups of wolves present in the state are located during the winter count.

The state documented 16 packs during the count, up from 12 packs in 2017. (A pack is defined as four or more wolves traveling together in winter.) Eight other groups of 2-3 wolves were also identified. Fifteen of those packs successfully reproduced and had at least two adults and two pups that survived through the end of 2018, making them “breeding pairs,” this is a 36 percent increase over last year’s number.

“The state’s wolf population continues to grow and expand its range, now into the central Oregon Cascade Mountains too,” said Roblyn Brown, ODFW Wolf Coordinator.

Highlights report:

Resident wolf numbers and reproduction increased in western Oregon. A second pack (White River Pack) reproduced and was designated a breeding pair for 2018, joining the Rogue Pack. The Indigo group of at least three wolves was also found in the Umpqua National Forest.

Three collared wolves dispersed to California and one to Idaho.

Approximately 13% of wolves known at the end of the year in Oregon were monitored via radio collar.

Biologists documented more than 15,000 wolf location data points by radio collar or other methods including aerial, track and howling surveys. 53% of these locations were on public land, 40% on private and 7% on tribal.

The breeding female of Oregon’s oldest known reproducing pack, the Wenaha Pack, disappeared and no reproduction was documented for the pack in 2018. The female wolf was at least 10 years old, which is old for a wolf in the wild. She appeared in poor body condition in summer trail camera photos.

Unlawful take of wolves decreasesTwo wolves were found killed unlawfully in 2018 (down from four in 2017). A juvenile wolf believed to be from the Grouse Flats Pack (a pack that uses Oregon but is counted as a Washington state pack because it dens there) was shot. The radio-collared breeding female of the Mt. Emily Pack was shot on the Confederated Tribes of the Umatilla Indian Reservation. Oregon State Police and CTUIR law enforcement continue to investigate these incidents and are actively seeking more information.

Livestock depredation increasesConfirmed depredation incidents by wolves increased 65 percent from last year, with 28 confirmed incidents, up from 17 last year. A total of 17 calves, one llama and two livestock guardian dogs were lost to wolves. An additional 13 calves were injured. Three wolf packs were responsible for the majority of depredations (Rogue — 11, Pine Creek — 6 and Chesnimnus — 5). While known wolf numbers have increased considerably over the last nine years, depredations and livestock losses have not increased at the same rate.

ODFW staff will present an overview of the draft Oregon Wolf Conservation and Management 2018 Annual Report to the Fish and Wildlife Commission at their April 19 meeting in St Helens. The presentation will be during the Director’s Report, and no public testimony is taken during this portion of the meeting.

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