2025
The following photos are of the winter helicopter captures of wolves in Northern California. Capture operations occurred from Jan. 14 through the end of that month across Siskiyou, Lassen, Plumas and Sierra counties. With the aid of contracted aircraft and a capture crew, wolves from the Whaleback, Harvey, and Beyem Seyo packs were captured. In addition to fitting each wolf with a satellite collar, biologists recorded body measurements and collected biological samples, including DNA and blood. Those samples allow CDFW to monitor wolves for diseases and to determine the relatedness of individuals and packs. The wolves were released at their capture locations.
An immobilized wolf being monitored by CDFW biologists
CDFW biologists monitor a captured gray wolf.
CDFW biologists monitor BEY09M (a male born in the 2024 litter of the Beyem Seyo pack) recovering from anesthesia prior to being released close to where he was captured, January 2025. Photo credit: Malia Brytus/California Wolf Project.
CDFW biologists monitor an anesthetized Harvey pack wolf after fitting a new GPS collar to her, January 2025.
A newly collared wolf from the Beyem Seyo pack is released close to where she was captured by the helicopter team, January 2025. (Photo credit: Malia Brytus/California Wolf Project)
CDFW veterinarian and biologist monitor LAS23F of the Beyem Seyo pack, prior to releasing her with the rest of her pack, January 2025. (Photo credit: Malia Brytus/California Wolf Project)
HAR11M, a male born in the 2024 litter of the Harvey pack after being released close to where he was captured with a new collar, January 2025. (Photo credit: Axel Hunnicutt/CDFW)
BEY01F, a female born in the 2023 litter of the Beyem Seyo pack after being released close to where she was captured with a new collar, January 2025. (Photo credit: Axel Hunnicutt/CDFW)
WHA01F, the breeding female of the Whaleback pack is laid in a straw-lined crate to safely wake up from anesthesia. She was safely released with her daughter, WHA29F close to where they were captured, January 2025.
2023
2020
8 wolf pups from the Lassen Pack in Lassen County, July 2020. CDFW video.

Female gray wolf after being fitted with a satellite tracking collar in Lassen County, June 2020. Photo by CDFW

Female gray wolf after being fitted with a satellite tracking collar in Lassen County, June 2020. Photo by CDFW

Female gray wolf after being fitted with a satellite tracking collar in Lassen County, June 2020. Photo by CDFW
2019
Adult female, yearling and pups in Lassen County, June 2019

Female gray wolf pup in Lassen County, September 2019. Photo by CDFW
Female gray wolf pup capture and release in Lassen County, September 2019. Video by CDFW
2018

Adult gray wolf in Lassen National Forest, July 2018. Photo by T. Rickman, USFS.

Adult gray wolf in Lassen National Forest, July 2018. Photo by T. Rickman, USFS.

Adult gray wolf in Lassen National Forest, July 2018. Photo by T. Rickman, USFS.

Adult dark gray wolf in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult gray wolf with collar at night in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult gray wolf running in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult gray wolf drinking from water guzzler in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult gray wolf running during the day in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult black wolf running in Lassen National Forest, August 2018. Photo by T. Rickman, USFS.

Adult dark gray wolf trotting in Lassen County, September 2018. Photo by L. Sandberg.

Two adult gray wolves at night in Lassen County, September 2018. CDFW photo.

One adult gray wolf at night in Lassen County, September 2018. CDFW photo.
2017

A pup howling. Wolves howl to communicate to each other. “Hey where are you? I’m over here.” CDFW photo.

Adult female wolf in Lassen National Forest, October 2017. CDFW photo
Three-month old wolf pups investigate their world while their mother, LAS01F, is on a hunting foray 5 miles away. CDFW video.
Collared breeding female wolf, LAS01F, and the breeding male heading out from their rendezvous site to hunt. CDFW video.
Four pups investigating their world in the wee hours of the night. CDFW video.
Wolf pup investigating a field camera it found. CDFW video.
2015 - 2016
Shasta Pack pups in Siskiyou County, August, 2015.

Adult canid in Siskiyou County, July, 2015. CDFW trailcam photo by Pete Figura.

Adult wolf in Siskiyou County, August, 2015. CDFW trailcam photo by Pete Figura.

Wolf pups in Siskiyou County, August, 2015. CDFW trailcam photo by Pete Figura.

Gray wolf OR7. Photo by Bryce Bohlander.

Gray wolf OR7. CDFW photo by Richard Shinn.

Wolf track in soil. CDFW photo by Pete Figura.

Wolf track in snow. Photo by Linda Hay.

Wolf track in snow. CDFW photo by Pete Figura.

Member of Shasta Pack. CDFW trailcam photo.

Member of Shasta Pack. CDFW trailcam photo.

Members of Shasta Pack. CDFW trailcam photo.

Wolf track in snow. Photo by Tanya Dronoff.

Members of Shasta Pack. CDFW trailcam photo.

Member of Shasta Pack. CDFW trailcam photo.

Members of Shasta Pack. CDFW trailcam photo.

Potential evidence of at least one other wild wolf in California. CDFW trailcam photo, Lassen County.

Potential evidence of at least one other wild wolf in California. CDFW trailcam photo, Lassen County.

Potential evidence of at least one other wild wolf in California. CDFW trailcam photo, Lassen County.

Potential evidence of at least one other wild wolf in California. CDFW trailcam photo, Lassen County.

Potential evidence of at least one other wild wolf in California. CDFW trailcam photo, Lassen County.