A pair of dogs killed at least three ewes, valued at $400 each, at Wolftown last week, according to T Yamamoto, who runs the nonprofit organization on Wax Orchard Road.

The dogs got through an electric fence at Wolftown’s farm, where Yamamoto has raised sheep for 15 years. A lamb is also missing and another injured. This is her first loss to a dog attack on Vashon Island.

“This is devastating. For a small farmer, it’s a huge impact,” she said.

Yamamoto said she believes that two dogs allowed to run loose on Wax Orchard Road joined each other to attack the sheep.

She says she’s talked to some neighbors in the past about letting dogs run loose — something she noted is against the law — and plans to talk to them again about the attack. People may be unaware, she said, of the damage dogs can do when they run loose and create packs.

“Even the nicest dog will kill livestock,” she said.