Why not take the jill out and hand feed the kit it should of been fending for itself anyway , myne were on meat at 3 weeks put it in the nest every evening just smashed it up a bit first , now at 4 and a half weeks when I open the hutch and call they all come scabelling to me , but every litter you learn something maybe it's not keen on chicken wing might be to much effort for it , also it shouldn't matter about the milk to much if it's running about you could give it waters down lactol from the pet shop put it on it's own and hand feed and liquid , hope this helps