A mountain lion and perhaps scavengers visited a residential front yard in the 200 block of Nathhorst Avenue in Portola Valley sometime late Sunday or early Monday, Aug. 12 or 13, and left the skeletal remains of a "large deer" that had been "picked clean," according to a resident.

A deputy from the San Mateo County Sheriff's Office investigated, the resident said. The area is relatively densely populated and there are pets in the neighborhood, the resident said. "It is probably best that the neighbors are aware," he said.

— Dave Boyce

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