The attack happened along Richmond Hill Road. The animals were owned by Cathy Kowalski.
"They were so small. They were like dogs. They were family," Kowalski said.
Kowalski kept 'Poppy' the horse and 'Harley' the donkey outside overnight Saturday. On Sunday Cathy heard crows flying around, so she went outside to see what the fuss was about.
When she didn't see Poppy and Harley she began to worry. Eventually, she ran into Poppy's torn up body.
"My miniature horse was pretty much gutted. At first I thought maybe she died of natural causes, but then when I called the donkey, the miniature donkey, and he didn't come, I knew he was dead too," she said.
Cathy and her neighbors know it was the Mountain Lion who lives in their community.
"We have one male that's very aggressive. He crosses Richmond Hill Road quite a lot. He's a pretty big boy. He's probably 120 pounds," said Carol Glasby, a neighbor.
Chances are it was that cat that killed the horse and the donkey. Wildlife officials say since they're territorial, you'll normally only find one Mountain Lion in a 65 mile area.
The cat buried Poppy and Harley under pine needles in Cathy's backyard.
"Because they're cats, they bury what they don't eat so they can come back and get it," said Kowalski.
Colorado Parks & Wildlife recommends people who live in lion country try to protect their pets the best they can.
They provided us with this information for you:
This is a link to their online brochure regarding fencing:
This is a link to their damage information page: