2012 Known and Probable Grizzly Bear Mortalities in the Greater Yellowstone Ecosystem

Data are preliminary and subject to change. Release of information will be limited for mortalities under investigation.
CountUniqueSexAge classKnown Mortality DateLocationLoss
56201256UNKCOY4-Aug-12North Fork Rodent Crk, BTNFProbable, natural, COY of radio-collared female lost between 6/6 and 10/1. Mortality date and location are approximate.
55201255UNKCOY25-Jun-12Meadow Crk, GNF-MTProbable, natural, 3rd of 3 COY of radio-collared female lost between 6/22 and 6/28. Mortality date and location are approximate.
54201254UNKCOY2-Jun-12Flints Crk, GNF-MTProbable, natural, 2nd of 3 COY of radio-collared female lost between 5/13 and 6/22. Mortality date and location are approximate.
53201253UNKCOY2-Jun-12Flints Crk, GNF-MTProbable, natural, 1st of 3 COY of radio-collared female lost between 5/13 and 6/22. Mortality date and location are approximate.
52201252UNKCOY2-Jun-12Lamar River, YNPProbable, natural, COY of radio-collared female lost between 5/14 and 6/21. Mortality date and location are approximate.
51201251MAdult22-Nov-12Snake River, GTNPKnown, human-caused, self-defense kill by hunters at elk carcass.
50201250  2012MTProbable, human-caused, under investigation.
49201249MCOY2-Oct-12Mountain Crk, SNF-WYProbable, natural, 3rd of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
48201248MCOY2-Oct-12Mountain Crk, SNF-WYProbable, natural, 2nd of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
47201247MCOY2-Oct-12Mountain Crk, SNF-WYProbable, natural, 1st of 3 COY not accompanying adult female when she was captured and removed. Date and location are approximate.
46201246FAdult20-Oct-12Pacific Crk, BTNF-WYKnown, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
45201245MAdult12-Oct-12Cartridge Crk, SNF-WYKnown, human-caused, self-defense kill by hunters.
44201244MAdult9-Oct-12Roaring Fork, BTNF-WYKnown, human-caused, self-defense kill by hunters.
43201243UNKCOY30-Sep-12Venus Crk, SNF-WYProbable, human-caused, 2nd of 2 COY whose mother was killed in self-defense by hunter.
42201242UNKCOY30-Sep-12Venus Crk, SNF-WYKnown, human-caused, 1st of 2 COY whose mother was killed in self-defense by hunter.
41201241FAdult30-Sep-12Venus Crk, SNF-WYKnown, human-caused, self-defense kill of female with 2 COY by hunter.
40201240MAdult30-Sep-12Buffalo Fork River, BTNF-WYKnown, human-caused, mistaken identity kill by black bear hunter.
39201239MAdult12-SepSpread Crk, GTNPKnown, undetermined cause, carcass was found near highway and had been partially consumed. Likely died during September.
38201238UNKCOY24-Sep-12Thorofare Crk, BTNF-WYProbable, human-caused, 2nd of 2 COY whose mother was killed in self-defense by hunter.
37201237UNKCOY24-Sep-12Thorofare Crk, BTNF-WYProbable, human-caused, 1st of 2 COY whose mother was killed in self-defense by hunter.
36201236FAdult24-Sep-12Thorofare Crk, BTNF-WYKnown, human-caused, adult female with 2 COY killed by hunter in self-defense.
35201235FAdult22-Sep-12South Fork Shoshone River, PR-WYKnown, human-caused, management removal for repeated conflicts at numerous residences and obtaining multiple food rewards.
34201234UNKCOY17-Sep-12East Fork Wind River, SNF-WYProbable, human-caused, COY of female that was killed by hunters in self-defense.
33201233FAdult17-Sep-12East Fork Wind River, SNF-WYKnown, human-caused, self-defense kill by hunter of female accompanied by 1 COY.
32201232MSubadult18-Sep-12Greybull River, PR-WYKnown, human-caused, management removal for obtaining multiple food rewards at residences and damaging apiaries.
31201231FCOY  No zoo could be found to take this COY. She was instrumented and released back into the ecosystem and her fate is being monitored. She is not counted as a mortality at this time.
30201230FAdult16-Sep-12Bear Crk, PR-MTKnown, human-caused, management removal for numerous cattle depredations.
29201229MAdult17-Sep-12North Piney Crk, PR-WYKnown, human-caused, management removal for repeated cattle depredations.
28201228MAdult13-Sep-12Horse Crk, PR-WYKnown, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
27201227MAdult12-Sep-12Pacific Crk, BTNFKnown, human-caused, management removal for repeated property damage and obtaining multiple food rewards.
26201226UNKSubadultFall, 2011Dago Crk, BTNF-WYKnown, natural, likely killed by another bear during the fall of 2011. Carcass found and reported 5 Sept 2012. Sample submitted for DNA determination of sex.
25201225MSubadult7-Sep-12Eaglenest Crk, PR-WYKnown, human-caused, management removal for obtaining multiple food rewards.
24201224MAdult28-Aug-12Pacific Crk, BTNF-WYKnown, human-caused, management removal for repeated property damages and food rewards.
23201223MAdultSpring 2012Camp Crk, SNF-WYKnown, human-caused, Known, human-caused, shot and left, malicous killing of #G116
22201222MAdult22-Aug-12North Fork Shoshone River, SNF-WYKnown, human-caused, road kill.
21201221MAdult17-Aug-12Raspberry Crk, BTNF-WYKnown, human-caused, management removal for repeated cattle depredations.
20201220MAdult3-Aug-12Wagon Crk, BTNF-WYKnown, human-caused, management removal for repeated cattle depredations.
19201219FAdult28-Jul-12Fish Crk, BTNF-WYKnown, human-caused, management removal for repeated cattle depredations.
18201218MAdult27-Jul-12Robbers Roost Crk, SNF-WYKnown, human-caused, killed by hikers in self-defense at close range during a surprise encounter.
17201217MSubadult5-Jun-12Sour Crk, YNPKnown, natural mortality of a radio-marked subadult, specific cause of death is unknown. Mortality date is midpoint between last active and first mortality signal.
16201216MSubadult22-Jun-12South Dry Crk, PR-MTKnown, human-caused, management removal for repeated cattle depredation.
15201215MYearling21-Jun-12Snake River, GTNPKnown, human-caused, trauma from vehicle strike.
14201214MSubadult11-Jun-12Cherry Crk, BDNF-MTKnown, human-caused, mistaken identity kill by bow hunter.
13201213UNKCOY11-Jun-12Lamar River, YNPKnown, natural, COY likely killed by wolves.
12201212UNKCOY21-May-12Alum Crk, YNPProbable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
11201211UNKCOY21-May-12Alum Crk, YNPKnown, natural, killed with mother by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
10201210FAdult21-May-12Alum Crk, YNPKnown, natural, radio-marked female with 2 COY was killed by another bear, one cub dead at site, second cub probably also dead. Mortality date is approximate (midpoint between last active and first mortality signal).
9201209UNKCOY21-May-12Jasper Crk, YNPProbable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
8201208UNKCOY21-May-12Jasper Crk, YNPProbable, natural, COY of mother that was killed by another bear. Mortality date is approximate (midpoint between last active and first mortality signal of mother).
7201207FAdult21-May-12Jasper Crk, YNPKnown, natural, radio-marked female with 2 COY was killed by another bear, both COY probably dead also. Mortality date is approximate (midpoint between last active and first mortality signal).
6201206MAdult19-Jan-12Spruce Crk, YNPKnown, natural, radio-marked bear died during winter, probably from maladies associated with old age. Mortality date is approximate (midpoint between last active and first mortality signal)
5201205FAdult31-May-12Yellowstone River, YNPKnown, natural, adult female was killed by another bear.
4201204MAdult25-May-12Gallatin River, PR-MTKnown, human-caused, shot in defense of property (dogs) at private residence.
3201203FCOY10-May-12Horse Crk, PR-WYKnown, natural, management capture of orphaned COY at a private residence in Dubios, WY on 5/7. Cub was in poor condition and died in captivity on 5/10. The cub did not respond to feeding. Circumstances of why the cub was alone are unknown.
2201202FSubadult22-Apr-12Sweet Hollow Crk, PR-IDKnown, human-caused, management removal for repeated property damages and food rewards
1201201MAdult17-Apr-12Wood River, PR-WYKnown, human-caused, management removal for repeated sheep depredations.
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; SNF = Shoshone National Forest; UNK = Unknown; WRIR = Wind River Indian Reservation; WYGF = Wyoming Game and Fish; YNP = Yellowstone National Park.