Triple B Roundup, Day 36

The incident began on July 17.  Gather stats through August 21:

  • Target: Horses
  • Type: Planned
  • Method: Helicopter
  • Category: Cruel and costly
  • Captured: 1,585, up from 1,416 on Day 34
  • Average daily take: 44.0
  • Capture goal: 1,900
  • Removal goal: 1,800
  • Returned: None
  • Deaths: 23, up from 21 on Day 34
  • Shipped: 1,495, up from 1,336 on Day 34

The figures above are based on the daily reports, not the totals posted by the BLM.

A stallion died on Day 36 of a broken neck and a mare was put down because of a missing eye.

The death rate is 1.5%.

The capture total includes 549 stallions, 771 mares and 265 foals.

Youngsters represented 16.7% of the animals gathered.

Of the adults, 41.6% were male and 58.4% were female.

The herd can’t be growing at a rate of 20% per year with a birth rate of 17% per year.

A better estimate would be 12% 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 provided.

The location of the trap was not disclosed.

The Complex and surrounding lands are subject to permitted grazing.

Triple B Complex Map 07-11-22

Day 36 ended with 67 unaccounted-for animals.

The capture goal is 83% complete.

Mares treated with fertility control may be returned to the area at a later date.

Other statistics:

  • Horses allowed by plan (AML): 821
  • Forage assigned to horses: 9,852 AUMs per year
  • Pre-gather population: 3,475
  • Forage liberated to date: 19,020 AUMs per year
  • Water liberated to date: 15,850 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 34.

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