Did you ever think of trying to trap the kittens, they could be socialized and would be adoptable. Seems
many on this site don't think to do that or to trap the mother and get her spayed!! It is possible as I've done it,
referred to TNR (trap neuter and return), adult feral cats usually can't...
Why didn't you try and trap the kittens? I work at a shelter and we've trapped many and socialized them and gotten them good homes (and the mother cat needs to be trapped and spayed or she'll have more kittens--I did this where I live
as the feral female here kept having kittens which all...
