With the outbreak of World War II (WWII), the government efforts to remove the horses stopped. The biggest news about
In 1906, Theodore Roosevelt set aside the Grand Canyon Game Preserve, partly to protect Kaibab Deer.  When the BLM develops land use plans, its official position is that it "will consider wild horses and burros in a manner similar to the way it treats other resource values (e.g., cultural, historic, wildlife, and scenic, as distinguished from authorized commercial land uses, such as livestock grazing or timber harvesting).
", Wild and Free Roaming Horses and Burros: Final Report, MANAGED TO EXTINCTION? An ever growing population of horses means that land is stripped of grass, bushes and other wild forage to be found. The Rahall Amendment stated: "Appropriations made herein shall not be available for the destruction of healthy, wild unadopted horses and burros in the care of the Bureau of Land Management or its contractor's or for the sale of wild horses and burros that results in their destruction for processing into commercial products.  Tens of thousands of horses were removed from the range between 1934 and 1940.
The animals are also available at BLM’s off-range corral facilities.
The predator tends to refocus predation on the new, now more abundant prey species.
 This means they can reach grazing land that cattle cannot access.
The problem is that according to a nationalgeographic.com article, as of March 1 2016, there were 45,000 horses and burros in governmental holding pens, theoretically waiting to be adopted. Adoption rates fall far short of population growth of horses and burros. We watched the horses through binoculars; saw a small baby skittish and full of energy jumping around the flanks of adults watchful and strong.  A few populations retained centuries-old Spanish horse genetics. ", In both the 2015 and 2016 budgets the Rahall language to prevent euthanizing and selling without limitation excess horses and to continue to allow funds to be used for long term holding. Since the WFRH&BA applies only to unclaimed horses that were free roaming on lands managed by the BLM and USFS at the time of passage of the Act, there are a number of other free-roaming horse herds in the west, including: Much of the debate as to whether free-roaming horses are an Introduced vs.  WHOAS also runs a 20-acre horse rescue facility west of the Town of Sundre for those horses that run into trouble and have to be removed from the wild. I’ve seen wild horses before and since, mostly in the Book Cliffs, I’ve also seen wild burros in Northern Arizona in Grand Canyon-Parashant National Monument. AdoptionsThe placement of gathered animals with qualified adopters has been an essential component of the BLM’s overall herd population management strategy.  Any horses rounded up were either considered estrays or, if branded, in trespass. The Western landscapes are not the same landscapes, neither are the plant and animal communities. Descended from animals brought over by the Spanish in the 1500s, they roam throughout public lands in western states … Wild horses and burros are available for adoption on the Internet and at more than 100 events held each year across the United States. Mostly the Spanish lost or released horses. Unless, however, there is a serious spike in wealthy homeowners with room to spare, adoption isn't likely to make a serious dent in the number of free-roaming horses.