We found a lost dog tonight. She didn't have a collar on and was near a main road so I put my dogs lead and collar on and bought her home. She has been lovely, obviously we were extremely careful but she has been fabulous with our DC. She's very affectionate and happy and playful.
We posted on local Facebook pages but no one claimed her. Someone offered to scan her to see if she has been microchipped and she had, but the phone number wasn't working and the person who scanned her said she'd been returned to a different address when she was last bought to their attention. We tried there and there was no answer, the neighbours said they'd never seen a dog at that address.
The dog is a staffy and seems malnourished. The rules with the dog warden here are that if you're happy to keep the dog you can do for 28 days and then for good if no one claims them during that period. We'd happily take her on if she had nowhere to go but my only concern is our dog. He's a rescue so we're not sure precisely how old he is but he's at least 11 and possibly up to 13. He's a Jack Russel. So far they have been fine together outside but she hasn't been spayed, he tried to hump her and she growled at him, he growled at her and got off. There's been a few more growling incidents indoors but mainly they've ignored each other.
Obviously they're sleeping separately tonight and will not be left alone either together or with the DC but do you think this could be doable if the owner isn't located, or does initial agression show they won't get along?