Burros on the range

2021 Outside Cibola-Trigo HMA Burro Removal

[Gather Complete]

Purpose of Gather

The purpose of this gather is to remove nuisance burros that are damaging wildlife refuge and private property and creating a public safety hazard for motorists along roadways. The Bureau of Land Management (BLM) has received complaints of natural resource loss, infrastructure damage and destruction, and concerns about human health and safety by the U.S. Fish and Wildlife Service in the Cibola National Wildlife Refuge and adjacent private property owners.

Details of Gather

The BLM plans to remove 200 nuisance burros from the Cibola National Wildlife Refuge including adjacent private land outside the Cibola-Trigo Herd Management Area (HMA) in 2021, via bait trapping, water trapping, or both.  A contractor and BLM staff will set temporary traps on refuge and private lands, and will remove the panels, hay and manure once the trapping is complete. For the purpose of this gather no burros will be treated with fertility control.  All trapping operations will be overseen by the Yuma Field Office.

Public Observation

There will be no public viewing opportunities for this gather due to the nature of the gather.

Adoption Information

How to Adopt

Animals removed from outside the Cibola-Trigo HMA will be made available for adoption at the Florence Wild Horse and Burro Training and Off-Range Corral in Florence, Arizona, through the Wild Horse and Burro Adoption Program. Those that are not adopted will be cared for in off-range pastures, where they retain their “wild” status and protection under the 1971 Wild Free-Roaming Horses and Burro Act.


The Cibola-Trigo HMA is in southwestern Arizona, north of Yuma. The area parallels the eastern shoreline of the Colorado River for approximately 60 miles from Yuma to Ehrenberg. The estimated population for this HMA as of March 2020 is approximately 616 wild burros and 275 wild horses based on various analytical population count data and reports. The Appropriate Management Level (AML) for the HMA is 165 burros and 150 horses.

Gather Details

Contractor: Cattoor Livestock Roundup 

Gather method: Bait trap 

Planned gathered (#): 200 burros 

Planned removed (#): 200 burros 

Planned mares or jennies treated (#): 0 

Current as of: July 13, 2021

Cumulative Totals

Animals Gathered

July 4
16 burros (7 males and 9 females)

July 5
13 burros (8 males and 5 females) 

July 6
24 burros (18 males and 6 females) 

July 7
50 burros (22 males,19 females, and 9 foals)

July 8
6 burros (1 male and 5 females)

July 9
22 burros (2 males, 13 females, and 7 foals)

July 10
7 burros (4 males, 2 females, 1 foal)

July 11
0 burros

July 12
48 burros (22 males, 19 females, 7 foals)

July 13
6 burros (2 males and 4 females)

July 14
0 burros

July 15
36 burros (3 males, 28 females, 5 foals)

Total Gathered: 230

Animals Removed Cumulative Total (#): 230

Total Deaths Cumulative (#): 1

Acute (#): 0

Chronic/Pre-existing (#): 1

List animal’s age, color, gender and cause(s) of death: 

  • Undetermined age, male, light grey. Pre-existing leg issues. Predominant front right leg. Extreme bowing towards left front leg. Other legs showed same issues. Could put light weight, however, leg would bend unnaturally. Body score of 2.

Facility Destination: Florence facility

July 8: Shipped 66 burros to Florence.
July 9: Shipped 66 burros to Florence.
July 13: Shipped 61 burros to Florence.
July 15: Shipped 36 burros to Florence.

Total Released Cumulative (#): 0