Rock Springs Roundup Day 56

The incident began on October 7.  Gather stats through December 1:

  • Type: Planned
  • Method: Helicopter
  • Horses captured: 2,727, up from 2,478 on Day 54
  • Average daily take: 48.7
  • Capture goal: 4,400
  • Removal goal: 3,500
  • Returned: 46, no change from Day 54
  • Deaths: 15, up from 12 on Day 54
  • Shipped: 2,495, up from 2,270 on Day 54

A stallion suffered a broken leg and a mare suffered a ruptured uterus on Day 55 as a result of the roundup.  A stallion was euthanized on Day 56 due to a pre-existing leg injury.  The death rate is now 0.6%.

The cumulative total includes 1,066 stallions, 1,106 mares and 555 foals.  The gather page shows 1,236 stallions.

1,236 + 1,106 + 555 = 2,897

Foals represented 20.4% of the horses captured.  Of the adults, 49.1% were male and 50.9% were female.

Body condition scores were not reported.

Gather activity continued at Salt Wells Creek and Adobe Town.  Five HMAs are involved in the roundup.

Rock Springs HMAs 10-13-21

Day 56 ended with 171 unaccounted-for animals.  The total number of horses removed is 2,727 – 46 = 2,681, which includes these animals.

Other statistics:

  • AML: 2,165 (across five HMAs)
  • Forage assigned to horses: 25,980 AUMs per year
  • Pre-gather population: 5,105
  • Forage liberated to date: 32,172 AUMs per year
  • Water liberated to date: 26,810 gallons per day
  • Forage assigned to livestock: 191,791 AUMs per year (estimated)
  • Horses displaced from HMAs by livestock: 15,982 (32% of off-range holding)
  • True AML: 18,147

RELATED: Rock Springs Roundup Day 54.

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