Plan of action.
Fed Polly her dinner. She saw me in the car and pricked up her ears and starting neighing she clearly knows I am here to help as I see her interact with other people and she becomes quite stroppy and moody. Her chain is loose now to the point she could even slip it. I will be going down to the site tomorrow to talk to the owner and see if he will sell her to me. If not I will simply steal her back but if I do that I need to find her a loving home and the transport to get her there.