I so love calicos and Jingle sure looks like a sweetie. She appears to be in good shape as though she's an indoor cat, yes? Maybe she got out by accident. If someone does claim her, I'd ask that she be kept indoors. If they don't agree, maybe you can ask if you can keep her because you're right about the coyotes. I lived in Sedona for 2 years and my neighbor lost their cat to a coyote. I wouldn't want to see that happen to sweet Jingle.