Franklin has surveyed ranchers using llamas to protect sheep, and found that llamas seem to be earning their keep. More than half of the llama owners he contacted reported 100 percent reduction in their predator losses after employing the animal as a guard.
The majority of guard llamas in the U.S. are patrolling Western ranches. But with larger predators like coyotes moving eastward, more flock owners might be interested in llamas as guardians.
Cameron Walker for National Geographic News
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