Can you afford to bring her a little chicken feed and some water, perhaps in the morning? She might like you better in the afternoon if she sees you as a source of food. Thanks for trying to save her.We went back to the tree where she was roosting, and just about managed to get her! She kept going back to it, but after a couple of attempts, we've decided to go back tomorrow after we're sure she is totally asleep. In the mean time, it doesn't seem she is going anywhere. Once we've (hopefully) got her, we'll probably try and see if one of our friends that owns chickens can take her, if no one claims her.Thank you for the help everyone!