She's very lucky that you found her and took her in and she sure looks happy in your home.

Hopefully her owners can be contacted soon. My guess is that they are away and some one is taking care of her while they're gone and she got loose and ran away. I had this same thing happen to me when I was dog sitting many years ago. The dog dug itself out of the fenced in backyard and when I went to feed her she was gone. There was a message from a woman on the owners phone saying that she had my dog. I called the lady and went to go get her. Luckily she had a tag on with her owners phone number on it. She managed to cross some railroad tracks and then cross a busy street. I was very glad that some one found her and could get in contact with me. Good luck.