We just adopted two feral kittens. The mother was a feral that a friend of a friend kept feeding until he could get her inside. She was pregnant and had four kittens. Just got them yesterday and they have decided to play hide and seek and we haven't been able to find them. They are in the house somewhere. All the bedroom doors were closed so they are somewhere in the main part of the house but they have definitely hidden themselves well. I guess when they get hungry enough they will show themselves. Meanwhile, we'll keep looking.
The animal control here does spaying and neutering and shots so when they get old enough we'll take them and have that done. It's cheaper than our vet.