I do not know what to do now. But maybe it would be best if I left them all out with Fudge and let them take their chances. I think she would protect them from cats etc. though whether she could stop them escaping from the garden is another matter. One thing is for sure, it will be nearly impossible to round them all up and get them back into the hutch again. And if they are only going to make another break for freedom, is it worth the time and energy doing so?
I will try and find all the small holes out of the garden and block them up. See if we can contain them that way. Roll on being able to get them to their new homes, and if there are any more I well leave them to Fudge to sort out. She did a pretty good job with this litter before I discovered them, so maybe she knows best.