I’m envious of the man with the blue tit. The best I’ve managed in my garden was a baby robin this summer. It wouldn’t fly to my hand but it would take food from me if I laid my hand on a flat surface that it could land on. Unfortunately, robins being robins, once the first two chicks had become independent they were chased away so that the parents could start their second brood. At least I prefer to think that was what happened to them rather than that they were caught by a cat.
I think my neighbour might be annoyed by all the bird activity in the garden - a very nice carved owl has suddenly appeared, perched on the end of her garage, the closest she can get it to my garden. Thankfully the birds are simply ignoring it.