Bear Naked Truth

Goings-on with black bears in the Tahoe Basin and beyond

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  • August 4, 2023

Bears Destined for Wildlife Sanctuary in Colorado and Rehabilitation Facility in Sonoma County

Wildlife biologists for the California Department of Fish and Wildlife (CDFW) this morning safely immobilized a large female conflict bear responsible for at least 21 DNA-confirmed home break-ins and extensive property damage in the South Lake Tahoe area since 2022. Her three cubs were also captured in the effort.

Pending a successful veterinary check, CDFW has secured permission from the State of Colorado to transport the female black bear, known as 64F, and place it with The Wild Animal Sanctuary near Springfield, Colorado, which has agreed to care for it in its expansive facilities. This large black bear is one of multiple bears identified by the public last year as “Hank the Tank” based on visual observations.

Colorado Parks and Wildlife has the authority to approve only one such placement and is using that authorization for this bear. Relocation is not typically an option for conflict animals over concern that relocating an animal will relocate the conflict behavior to a different community. However, given the widespread interest in this bear, and the significant risk of a serious incident involving the bear, CDFW is employing an alternative solution to safeguard the bear family as well as the people in the South Lake Tahoe Community.

A large conflict black bear in the Lake Tahoe Basin captured by CDFW on Aug. 4, 2023.
CDFW file photo of conflict black bear 64F.

The sow's three young cubs, which have accompanied the bear on recent home break-ins, will potentially be relocated to Sonoma County Wildlife Rescue, a CDFW-permitted wildlife rehabilitation facility in Petaluma in hopes they can discontinue the negative behaviors they learned from the sow and can be returned to the wild. All three cubs were given a health assessment in the field before transfer and will receive additional examination at the facility. One of the cubs is believed to have suffered serious injuries from a vehicle strike earlier this month, though is still mobile. The injured cub will be given a thorough veterinary evaluation.

Bear 64F has been monitored closely by CDFW since 2022. In March of 2023, she was discovered denning under a residence in South Lake Tahoe along with her three male cubs of the year. Staff from CDFW and the Nevada Department of Wildlife immobilized the bear, collected DNA evidence, attached an ear tag and affixed a satellite tracking collar to the bear. Staff also implanted Passive Integrated Transponders, known as PIT tags, into the cubs for future identification. The PIT tags contain a microchip similar to what’s implanted into pet dogs and cats for identification.

Bear 64F shed the satellite tracking collar last May. The bear’s DNA, however, has been confirmed at 21 home invasions in the South Lake Tahoe area between February 2022 and May 2023 with the bear suspected in additional break-ins and property damage.

CDFW’s updated Black Bear Policy (PDF), released in February 2022, allows for the placement and relocation of conflict bears in limited circumstances when other management options have been exhausted and as an alternative to lethal actions.

Media Contact:
Jordan Traverso, CDFW Communications, (916) 212-7352

Categories: Human Wildlife Conflict, Rehabilitation, South Lake Tahoe
  • February 17, 2022
Map of the Tahoe Keys displaying South Lake Tahoe Police Department bear-related responses.

Map of documented bear responses from the South Lake Tahoe Police Department from Aug. 18 through Nov. 4, 2021. Map courtesy of South Lake Tahoe PD.

The following post was written with the best information CDFW had at the time. Since this post was published, new information has come to light regarding incidents in the Tahoe Keys neighborhood. Please see the February 24, 2022, post "DNA Evidence Prompts Revised Response to Tahoe Keys Bear Incidents" for the most updated information.

The California Department of Fish and Wildlife (CDFW) is conducting a special trapping effort for a specific male bear, weighing approximately 500 pounds, in the Tahoe Keys area of South Lake Tahoe. These traps represent official state business to capture a specific and “severely food-habituated bear” defined as a conflict bear under CDFW’s 2022 Black Bear Policy in California. Food-habituated means that the animal has lost its fear of people and is associating people with access to food.

For more than seven months, and despite intense hazing and other mitigation efforts, this bear has caused extensive property damage in 33 documented cases and forcefully entered at least 28 homes in and near the Tahoe Keys (see map above). This bear is extremely food-habituated and has used its immense size and strength to break in and through front doors and garage doors. There have been, at last count, 102 individual reports of local police responses to this bear, including multiple hazing events to discourage the bear from breaking into homes and seeking human food sources.

When combining CDFW data with information from local police agencies, CDFW has 152 reports of conflict behavior from this animal. This bear is readily identifiable due to its exceptionally large size and dark coat with lighter muzzle. Additionally, CDFW has collected the bear's DNA and created a DNA profile to allow for 100 percent accurate identification of the bear. All other bears captured will be ear tagged, hazed away from human food sources, and released by our wildlife professionals in the nearest appropriate habitat.

While the Lake Tahoe area has a healthy and dense bear population, euthanizing an animal is always our last option. CDFW is currently evaluating the possibility of placement of this bear when captured. As detailed in our recently updated Black Bear Policy in California, there are several requirements that must be met to consider placement of a wild adult black bear.

Placement of adult black bears can have significant negative consequences on their mental health and must be considered when evaluating placement options. To quote from our Black Bear Policy: “Adult bears may be poor candidates for placement due to the chronic stress of adjusting to captivity after living in only wild conditions." To be considered, placement facilities must be accredited, have necessary state and federal permits to receive animals, and meet CDFW's standards for quality of facilities. At the time of this post, CDFW has not identified a placement option for this bear that meets the criteria of the Black Bear Policy.

The outcome for this food-habituated bear could have been avoided with a few simple actions. Bears are primarily scent-driven when seeking food. As such, we ask again that everyone remain vigilant and act responsibly by properly storing food and garbage while living in – or visiting – bear habitat. For tips and best practices to keep Tahoe’s bears from becoming accustomed and dependent on human food sources, visit Keep Tahoe Bears Wild. Additional information and resources are available at CDFW’s Keep Me Wild: Black Bear web page.

Categories: Public Safety, Tahoe Keys
  • October 16, 2020
black bear at night outside of a large metal bear trap

The California Department of Fish and Wildlife (CDFW) and California State Parks are teaming up on a black bear research project in the Lake Tahoe Basin starting this fall. The goal is to gather genetic information on individual bears so that wildlife managers can identify individuals, better understand relatedness among bears, further understand their behavior and movements, and acquire a greater sense of the relative density of this species throughout the Tahoe Basin. Three black bears already have been captured, tagged and released this week as part of this scientific initiative.

scientist bent over immobilized black bear
Sarinah Simons from California State Parks collects a saliva sample from a Tahoe Basin black bear last spring. CDFW and State Parks are collaborating this fall to build a DNA database and inventory of Lake Tahoe's black bear population. CDFW photo.

The biologists will capture, immobilize and ear-tag individual bears while collecting biological samples (DNA through blood, hair, and saliva swabs). Trapped bears will receive a full field evaluation and the animal’s vital signs—heart rate, temperature, and respiration—will be monitored throughout the entire process. An inventory and DNA database of the Tahoe Basin's bear population will be accumulated over time.

Aversive hazing (“tough love”) may be applied to bears upon release. Techniques will include bean bag and paint ball projectiles as well as air horns. These tactics are based on a simple principle: If bears are smart enough to learn from positive experiences, perhaps they are smart enough to learn from negative ones as well.

Through this collaborative partnership, CDFW and State Parks aim to reduce the number and frequency of human-bear conflicts and restore black bears in Lake Tahoe to their natural and wild behavior. However, this can only be done through positive cooperation from the public. This includes storing all food and garbage in secure, bear-proof facilities, discouraging bears from residing in developed areas and NEVER feeding bears or other wildlife. Together, we can all work to keep Tahoe bears safe and wild.

black bear at night outside of a large metal bear trap
CDFW and State Parks will attempt to capture, tag and release as many black bears as possible in the Tahoe Basin this fall in order to build up a DNA database of the population, be able to identify individual bears responsible for conflicts and provide aversive hazing to minimize future human-bear conflicts. CDFW photo.

Categories: Research
  • October 8, 2020
Images/OCEO/BearBlog/CarnelianBayBear.jpg

A sedated, immobilized Carnelian Bay black bear awaits a wildlife veterinarian's examination inside CDFW's Wildlife Investigations Lab near Sacramento. CDFW photo.

As wildlife managers, California Department of Fish and Wildlife (CDFW) staff are trained to hope for the best while preparing for the worst.

Last weekend, a CDFW environmental scientist specializing in human-wildlife conflicts responded to worried reports about a very sick or injured bear in the Carnelian Bay area of northern Lake Tahoe in Placer County. These reports were bolstered by a troubling video clip that showed a staggering bear slowly entering a small patch of habitat in a residential area. When CDFW arrived at the scene, the listless animal was located under a nearby structure.

Finding a bear that was mostly non-responsive, CDFW acted swiftly under animal welfare protocols to anesthetize the bruin and transport it to its Wildlife Investigations Lab near Sacramento for further expert evaluation. A veterinarian’s exam confirmed a severely dehydrated and emaciated adult female black bear with sunken eyes, protruding bones, and only weighing 115 pounds – or about half the average size for a female bear more than 10 years of age.

The bear’s significantly compromised condition, coupled with abnormal swelling of her mammary glands and other lesions, led CDFW to a presumptive diagnosis of “end-stage metastatic cancer.” As such, this animal’s suffering was ended as swiftly and humanely as possible, and the initial diagnosis was later confirmed via necropsy.

Categories: Carnelian Bay

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