Triple B Roundup, Day 19

The incident began on July 17.  Gather stats through August 4:

  • Target: Horses
  • Type: Planned
  • Method: Helicopter
  • Category: Cruel and costly
  • Captured: 735, up from 647 on Day 17
  • Average daily take: 38.7
  • Capture goal: 1,900
  • Removal goal: 1,800
  • Returned: None, no change from Day 17
  • Deaths: 16, up from 14 on Day 17
  • Shipped: 674, up from 554 on Day 17

The figures above are based on the daily reports.

Two horses were put down on Day 19 due to pre-existing conditions.  They’d be alive if there was no roundup.

The death rate is 2.2%.

The capture total includes 255 stallions, 352 mares and 128 foals.

Youngsters represented 17.4% of the animals gathered.

Of the adults, 42.0% were male and 58.0% 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 could not be produced by a simple random process centered at 50% males / 50% females (p-bar = .5, n = 607 adults).

How to Compute p-chart Limits 02-10-22

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.

Triple B Complex Map 07-11-22

Day 19 ended with 45 unaccounted-for animals.

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: 8,820 AUMs per year
  • Water liberated to date: 7,350 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 17.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s