First of all. Good for you to help her! At least you know she's safe for now.
I would call a local rescue and let them know about her. If she is not claimed, the rescue can go get her before time is up.
We had a similar situation about a year ago. Found a Borzoi with no tag, leash and walking along a very busy street. Her owners claimed her the next day. She was micro-chipped. |