The Decision Memorandum was signed on August 10 and operations began on August 11, with no opportunities for appeal.
The incident was not announced at the BLM news site and does not appear in the latest schedule.
The gather page indicates 136 burros captured, 136 shipped, none released and no deaths, as of August 18.
The capture total includes 63 jacks, 49 jennies and 24 foals.
Youngsters represented 17.6% of the animals gathered.
Of the adults, 56.3% were male and 43.8% were female.
The location of the trap was not specified.
Day 8 ended with no unaccounted-for animals.