or possibly a feral cat group? Maybe a google search for your area or call animal control in your area and see if they can give you some contact folks' names.

There are usually farmers who are looking. Cats come and go on the farm, I have picked up cats from such ads before.

dangerous place to give away animals. They do sick things like feed kittens to their fighting dogs. Sell them to medical research. Put them on the dinner table. I am a foster for an animal rescue and they told me about things that can happen. Feed mamma for a while and call a no-kill shelter.

make sure Momma cat has food and clean water. She needs a lot of calories to feed those babies.

Animal control or a local veterinarian may be able to give you leads to a rescue or a shelter.

Animal control around here says that if you feed it, you are responsible for it, and they refuse to take the animal without a hefty "surrender" fee.

Or close?