The incident began on July 17. Gather stats through August 12:
- Target: Horses
- Type: Planned
- Method: Helicopter
- Category: Cruel and costly
- Captured: 1,189, up from 1,043 on Day 25
- Average daily take: 44.0
- Capture goal: 1,900
- Removal goal: 1,800
- Returned: None
- Deaths: 20, no change from Day 25
- Shipped: 1,092, up from 926 on Day 25
The figures above are based on the daily reports, not the totals posted by the BLM.
The death rate is 1.7%.
The capture total includes 420 stallions, 577 mares and 192 foals.
Youngsters represented 16.1% of the animals gathered.
Of the adults, 42.1% were male and 57.9% were female.
The herd can’t be growing at a rate of 20% per year with a birth rate of 16% per year.
A better estimate would be 11% per year, assuming a death rate of 5% per year.
The observed percentages of stallions and mares cannot be attributed to a simple random process centered at 50% males / 50% females.
Abnormal sex ratios are often found in herds subject to the Montana Solution but not double-digit birth rates.
Body condition scores were not given.
The location of the trap was not disclosed.
The Complex and surrounding lands are subject to permitted grazing.
Day 27 ended with 77 unaccounted-for animals.
Mares treated with fertility control may be returned to the area at a later date.
- Horses allowed by plan (AML): 821
- Forage assigned to horses: 9,852 AUMs per year
- Pre-gather population: 3,475
- Forage liberated to date: 14,268 AUMs per year
- Water liberated to date: 11,890 gallons per day
- Forage assigned to livestock: 49,188 AUMs per year (estimated)
- Horses displaced from Complex by permitted grazing: 4,099
- True AML: 4,911
- Stocking rate at new AML: 3.0 horses per thousand acres
- Horses displaced from Complex by drilling and mining: Ask the advocates
RELATED: Triple B Roundup, Day 25.