The incident began on December 28. Results through February 2:
- Scope: Sonoma Range HA, East Range HA, Humboldt HA, Tobin Range HMA, North Stillwater HMA, Augusta Mountains HMA
- Purpose: Pest control, resource enforcement, rancher protection
- Target: Horses
- Type: Planned
- Method: Helicopter
- Category: Cruel and costly*
- Better way: Poison the mares with PZP, let the herd die off*
- Captured: 2,323, up from 2,225 on Day 35
- Average daily take: 62.8
- Capture goal: 2,875
- Removal goal: 2,875
- Released: 3, no change from Day 35
- Deaths: 24, no change from Day 35
- Shipped: 2,290, up from 2,192 on Day 35
The figures above are based on the daily reports, not the totals posted by the BLM.
The death rate is 1.0%. Three horses died accidentally, 21 were killed intentionally.
The capture total includes 940 stallions, 1,080 mares and 303 foals. The sidebar at the gather page says 938/1,074/305.
Youngsters represented 13.0% of the animals gathered, consistent with a herd growth rate of eight percent per year.
Of the adults, 46.5% were male and 53.5% were female, no evidence of an abnormal sex ratio.
Body condition scores ranged from 3 to 4 on Days 36 and 37.
The location of the trap site was not disclosed.
The Complex is managed primarily for animal agriculture. The National Data Viewer shows habitat loss and grazing allotments. Click on image to open in new tab.
*According to advocates.
Day 37 ended with 6 unaccounted-for animals. This result should be zero based on the totals in the sidebar, suggesting there are errors in the daily reports.
The contractor is shipping them the same day they are captured, no animals held back for selective return.
There are no plans to treat any of the captured mares with fertility control pesticides and return them to the range.
Other statistics:
- Forage liberated to date: 27,840 AUMs per year
- Water liberated to date: 23,200 gallons per day
- Horses allowed by plan: 555
- Pre-gather population: 3,375
- Forage assigned to horses: 6,660 AUMs per year
- Forage assigned to livestock: Not determined
- Horses displaced from Complex by permitted grazing: Not determined
- True AML: Not determined
- Stocking rate at new AML: Not determined
- Horses displaced by drilling and mining: Ask the advocates
Overpopulation means more horses than allowed by plan, not necessarily more horses than the land can support.
The ability of the Complex to sustain wild horses has been limited by the bureaucrats, who have assigned most of their food to the public-lands ranchers.
Refer to these reports for an indication of the problem:
RELATED: East Pershing Roundup, Day 35.

