Do you get rid of feral cats. The colony in my yard is getting out of hand

No, they don't. But since they're feral, they transfer them to organizations that handle them. They do keep and place in homes those that can be socialized. Namely the kittens. The rest are trapped, neutered, and released (TNR).

Call the Feral Cat Rescue of Oregon. They should be able to help.

I caught 6. There are 3 more hanging around. They got wise to my ways and I have been unable to trap them. Good Luck!