Portuguese Cao de Gado Transmontanos, Bulgarian Karakachans and Turkish Kangal dogs effectively kept coyotes and wolves away from domestic sheep herds in Idaho, Montana, Oregon, Washington state and Wyoming, but not every dog in the USDA study performed equally well. The dogs that bonded well with people managing the herds seemed to perform the best, says Julie Young, a research biologist at the USDA's National Wildlife Research Center.
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