Coyotes are fairly common in SOCAL. My dog and I have been shadowed in the neighborhood park (which sits at the edge of a wildlife sanctuary/ravine) on morning walks but the ‘yotes generally keep enough distance from the human (me). OTOH, given the opportunity, they’d take the dog in a heartbeat as they have taken other small dogs and neighborhood cats who thought to get back to nature by hunting rabbits... and the hunter becomes dinner.

A cougar here would get a wee bit more attention.