Sand Wash Roundup Day 7

The incident began on September 1.  Gather stats through September 7:

  • Type: Emergency
  • Method: Helicopter
  • Horses captured: 501, up from 329 on Day 5
  • Average daily take: 71.6
  • Capture goal: 783
  • Removal goal: 733
  • Returned: 1, no change from Day 5
  • Deaths: 1, no change from Day 5
  • Shipped: 370, up from 190 on Day 5

The death rate has dropped to 0.2%.

The breakdown between stallions, mares and foals captured on Day 5 was added to the gather page.

Foals represented 13.2% of the horses gathered.  Of the adults, 41.4% were male and 58.6% were female.

The low percentage of foals may be due to the darting program.  The gap between males and females may indicate the sex ratio of the herd is not 1:1 (50/50).

This pattern—more mares captured than studs—has appeared in every wild horse roundup this summer since Onaqui.

Body condition scores were not reported.

Day 7 ended with 129 unaccounted-for animals.

Other statistics:

  • AML: 362
  • Forage assigned to horses: 4,344 AUMs per year
  • Pre-gather population: 896
  • Forage liberated to date: 6,000 AUMs per year
  • Water liberated to date: 5,000 gallons per day
  • Forage assigned to livestock: 16,827 AUMs per year (estimated)
  • Horses displaced from HMA by livestock: 1,402 (2.8% of off-range holding)
  • True AML: 1,764

RELATED: Sand Wash Roundup Day 5.

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