I caught turkey the cat killing my little turkey poults. The big turkeys were too big for her, but she killed 2 or 3 before I finally lured her over with some food. She'd been someones cat and was tame and friendly, but was obviously nursing kittens and was starving. So I didn't begrudge her the turkeys, but I did have her spayed. Notice that the tip of her right ear is missing. That tipping is how you indicate that a feral cat has been spayed. She seemed friendly, and I was ok with her being a barn cat. I took her home to tame her a little more, and ended up keeping her at the house.
Turkey the cat is in robust good health. Spayed and with a full set of vaccinations ($11 at the feed store) she's one of the few animals that survive being dumped. We managed to trap one of her kittens as well, a little white spitfire that is not at all tame. the kitten has been living in a dog carrier in our living room for a month or so now, so that we can tame it down enough to allow us to handle it and get it spayed or neutered when we figure out what sex it is. It still hisses and spits and claws, but it's getting a little calmer every day.