A similar emergency roundup began this month in central Nevada, where officials said some horses in a herd of 2,100 could die from lack of water in coming weeks. The operation was quickly halted, ironically because of extreme rain, but will likely resume.

“The ground’s so dry it’s not absorbing that water. It’s running off,” bureau spokeswoman Jenny Lesieutre said.

Volunteers are also taking action.

Since late spring, Netherlands’s Salt River group has hauled hay to a dozen locations outside Phoenix to feed a herd of starving wild horses.

Roughly 200 miles (320 kilometers) north, a couple near Gray Mountain, on the Navajo Nation, have spearheaded an effort to leave water and food for horses they say would die without human intervention.

In western Colorado, volunteers say they’re preparing to bring up to 5,000 gallons (18,900 liters) of water per day to a herd of 750 desperate horses.

“Springs are drying up that have never dried up,” said Cindy Wright, co-founder of Colorado conservation group Wild Horse Warriors for Sand Wash Basin. Horses in the area stalk the dry earth with their ribs exposed, desperate for a drop, she said.

Wild horse advocates have balked at the Bureau of Land Management’s insistence that wild horse populations are too high. Critics say the agency is using dry conditions as a smoke screen to shrink horse populations in response to pressure from ranchers whose livestock compete with the horses for grazing land.

“I do have a concern about the larger numbers that they’re pulling off, and then a bigger concern about the BLM under this administration using all kinds of excuses to pull off horses,” said Suzanne Roy, executive director of the American Wild Horse Campaign, an advocacy organization.

The agency is prohibited from euthanizing the wild horses it rounds up, though President Donald Trump has proposed allowing the animals to be killed or sold for slaughter.

Activists in Nevada held a rally last Tuesday at the bureau’s state headquarters in Reno to protest a planned roundup later this year.

Critics want the government to instead use birth control to manage wild horse populations.

The bureau says the fertility treatment, which must be administered yearly and fired from a dart gun at close range, is too difficult for use except in certain cases where herds are easy to approach and have markings that make horses distinguishable from one another.

Whatever the long-term answer, volunteers say their efforts can’t go on forever. Trucking in water and food could cost several thousand dollars per month and make horses overly dependent on humans, they said.

“If we don’t have a very good fall with a lot of rain — and it’s also warm so that our fall vegetation grows — we’re going to lose horses,” Wright said.
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Associated Press writers Felicia Fonseca in Flagstaff, Arizona, and Scott Sonner in Reno, Nevada, contributed to this report.