The incident began on November 8. Results through November 12:
- Scope: Clan Alpine HMA
- Purpose: Pest control, resource enforcement, rancher protection
- Target: Horses
- Type: Planned
- Method: Helicopter
- Category: Cruel and costly*
- Better way: Poison mares with ovary-killing pesticides*
- Captured: 518, up from 295 on Day 3
- Average daily take: 103.6
- Capture goal: 1,594
- Removal goal: 1,381
- Returned: None
- Deaths: 7, up from 3 on Day 3
- Shipped: 373, up from 170 on Day 3
A stallion and mare were dispatched on Day 4 because of cancer. Another stallion and mare were killed because of abscesses, a treatable condition.
The death rate is 1.4%.
The capture total includes 209 stallions, 225 mares and 84 foals.
Youngsters represented 16.2% of the animals gathered, suggesting the herd is growing at a rate of 11% per year.
Of the adults, 48.2% were male and 51.8% were female.
Body condition scores were not given.
The HMA and surrounding lands are subject to permitted grazing.
*According to advocates.
Day 5 ended with 138 unaccounted-for animals.
Up to 81 mares will be treated with GonaCon Equine, a fertility control pesticide, before being returned the range with up to 121 stallions.
Other statistics:
- Forage liberated to date: 6,216 AUMs per year
- Water liberated to date: 5,180 gallons per day
- Horses allowed by plan: 979
- Pre-gather population: 1,661 plus this year’s foals
- Forage assigned to horses: 11,748 AUMs per year
- Forage assigned to livestock: 6,796 AUMs per year
- Horses displaced from HMA by permitted grazing: 566
- True AML: 1,545
- Stocking rate at new AML: 5.2 wild horses per thousand public acres
- Horses displaced by drilling and mining: Ask the advocates
RELATED: Clan Alpine Roundup, Day 3.

