A Great Pyrenees, Primo, was purchased by a Flagstaff owner to be a livestock guardian dog - something that Pyrenees are innately bred to do. Livestock guardian dogs live outside with their flocks day and night, regardless of weather conditions.

Primo was accepting of his role in life on his five-acre mini-ranch and blended in well with his small herd of goats, sheep and chickens. He (humanely) slept in a lean-to during the Flagstaff winter, tolerated the unyielding winds and even fought his way through pelting rain. His owners tried to urge him into the house during the coldest days, but Primo would have none of it. He was there to "protect and serve" against wild cats, wolves and coyotes.