2019 Known and Probable Grizzly Bear Mortalities in the Greater Yellowstone Ecosystem

This information is preliminary and is subject to revision. It is being provided to meet the need for timely best science. The information is provided on the condition that neither the U.S. Geological Survey nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information. Release of information will be limited for mortalities under investigation.
CountUniqueSexAge classKnown Mortality DateLocationDemographic Monitoring AreaLoss  
          
Part A. Documented known and probable grizzly bear mortalities that occurred during 2019 inside the Demographic Monitoring Area (DMA).         
          
1201901MAdult3/31/2019South Fork Shoshone, PR-WYInsideKnown, human-caused, management removal for cattle depredations.  
2201905MAdult5/1/2019Madison River, PR-MTInsideKnown, human-caused, killed by vehicle strike on U.S. Highway 287.  
3201906MSubadult5/4/2019Wind River, SNF-WYInsideKnown, human-caused, killed by vehicle strike on U.S. Highway 26/287.  
4201909MSubadult5/25/2019Madison River, CGNF-MTInsideKnown, human-caused, mortally wounded by vehicle strike and dispatched by agency personnel.  
5201912MAdult6/25/2019Long Crk, SNF-WYInsideKnown, human-caused, management removal for cattle depredations.  
6201914MAdult7/21/2019Wagon Creek, BTNF-WYInsideKnown, human-caused, management removal for cattle depredations.  
7201915MAdult8/8/2019Green River, BTNF-WYInsideKnown, human-caused, management removal for cattle depredations.  
          
          
Part B. Documented known and probable grizzly bear mortalities that occurred during 2019 outside the Demographic Monitoring Area (DMA).         
          
1201904MSubadult4/16/2019Carter Crk, PR-WYOutsideKnown, human-caused, management removal for cattle depredations.  
2201907MSubadult5/10/2019Pat O'Hara Crk, PR-WYOutsideKnown, human-caused, management removal for frequenting developed site, obtaining food rewards, and aggressive behavior.  
3201908MSubadult5/11/2019Carter Crk, PR-WYOutsideKnown, human-caused, management removal for cattle depredations.  
4201910  2019WYOutsideKnown. Under investigation.  
5201911MAdult6/17/2019Marquette Crk, PR-WYOutsideKnown, human-caused, management removal for cattle depredations.  
6201913MSubadult7/19/2019Middle Fork Owl Crk, PR-WYOutsideKnown, human-caused, management removal for obtaining multiple food rewards and bold behavior.  
          
          
          
Part C. Documented known and probable grizzly bear mortalities found during 2019 that occurred in years prior to 2019.         
          
1201902  2018MTInsideKnown. Under investigation.  
2201903  2018MTInsideProbable. Under investigation.  
Known mortality - a carcass is in hand; Probable mortality - evidence strongly suggests a mortality has occurred but no carcass is recovered. Abbreviations: BOR = Bureau of Reclamation; BLM = Bureau of Land Management; BTNF = Bridger-Teton National Forest; COY = cub-of-the-year; CTNF = Caribou-Targhee National Forest; GNF = Gallatin National Forest; GTNP = Grand Teton National Park; IDFG = Idaho Fish and Game; MTFWP = Montana Fish, Wildlife and Parks; PR = private land; ST= state owned land; SNF = Shoshone National Forest; UNK = Unknown; WRIR = Wind River Indian Reservation; WYGF = Wyoming Game and Fish; YNP = Yellowstone National Park.