If you want her to think better of you & your attentions, ply her with juicy crickets & moths at bed time!
I've attempted to bribe many a hen into coming closer & associating me with good, tasty treats. It usually works, too. If you always use the same words, they can associate them + your excitement level to understand that it's worth it to approach you. Heck, maybe they'll even COME WHEN YOU CALL, if you have a treat or have found a tasty bug! They learn that, too!
As for Mira, in my opinion possession is 9/10 of the law & finders keepers! No more looking for her former owners, they're obviously not looking for her. Besides, if she had it so good there she might have been inclined to stay...assuming that she was wanted. While it's true that she might've wandered off, gotten lost & been unable to find her way home, she found her way to a new home. For all we know, your dear Daisy could've told her where to go for help & shown her the way.
Accept your gift, say thank you every day & enjoy.