2011 White Mountain and Little Colorado Wild Horse Gather
8/20/11 - 8/31/11
Purpose of Gather:
To reduce overpopulation of wild horses and achieve appropriate management level.
Details of Gather:
This was a helicopter-assisted gather. The estimated population in the White Mountain/Little Colorado herd management areas (HMAs) is currently 970 wild horses. This figure is based on April 2010 census flights, adjusted for two years’ foal crop, and 14 percent unobserved wild horses. There are approximately 696 excess mustangs above the low appropriate management level in the White Mountain/Little Colorado HMAs.
Roughly 177 wild horses will be returned to the combined HMAs. It is estimated the ungathered wild horse population in these HMAs is approximately 10 percent, or 66 wild horses in White Mountain, and 31 wild horses in Little Colorado, which consist of an assumed sex ratio of 50 percent stallions and 50 percent mares.
Approximately 40-60 mares will be treated with the fertility-control vaccine Porcine Zona Pellucida (PZP) and released back into the HMAs.
Approximately 274 wild horses will remain in the White Mountain/Little Colorado, which is the appropriate management level (AML) for these HMAs. AML is the point at which the herd’s population is consistent with the land’s capacity to support wild horses in balance with other public rangeland uses and resources.
If interested in watching the gather, please contact Serena Baker, firstname.lastname@example.org, to be added to the anticipated visitors’ log. Only individuals listed on the visitors’ log will be contacted with daily viewing sites, times, and meeting locations. Email contact is requested as cell phone service is spotty in the HMAs.
The White Mountain/Little Colorado HMAs are in rugged and remote areas. Safety is our first priority and BLM staff will be available each public observation day to escort you into areas where you can safely view gather operations. We are providing the following information for your safety so you can be prepared for your visit.