By Joe Vazquez

SAN FRANCISCO (CBS SF) – Liza Valdeolivar is grieving the loss of her best friend and doesn’t want other pet owners to feel a similar pain.

So the San Francisco resident is raising the alarm about the dangers of coyotes within the city’s parks.

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Three months ago, Valdeolivar was walking her 9-year old 11-pound Yorkshire named Mya in Broderick Terry Park near Lake Merced.

She often walked her dog there. But on this day, a pack of coyotes was lying in wait.

“She was my best friend, I called her my ‘sidekick,’” Valdeolivar told KPIX 5. “She was with me all the time. It happened as she was on her way to me. I had called her over.”

As she watched in shock, the coyotes attacked.

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“One of them picked her up by the neck. … She was dangling,” Valdeolivar said. “And ran up the bushy area and through a barbed wire fence where there’s a hole.”

Valdeolivar yelled and tried to scare the coyotes away from her pet.

“I’m yelling, I’m callilng her name,” she said. “Yelling, yelling, yelling.”

But her beloved dog was gone.

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“I would like for people to be aware that there are animals out here and we are cohabitating with them,” she said. “I wish I had known because I would never have put my dog in danger that way. I feel so responsible.”