I cleaned her wounds, patches her up with gauze and made her comfy for the night. She made it through the night and seems to be doing well. Will keep her in the house for a few days and give her some extra tlc! I'm now thinking it was one of my neighbor's dogs. He has quite a few which are usually secured in their yard. He has another that is small and gets out and literally lives on our back porch. But she's a sweetie, is great around the chickens and has chased off other neighborhood dogs as well as bark at the coyotes beyond the tree lines at night. So I've actually like having her around. And I was surprised she didn't alert us to anything last night. But when I went out to check on things later last night, the other dog was out there sniffing around, running circles around the coop. So maybe if it was her, then that's why the dog who has adopted us didn't bark. They're buddies!