Years ago I made a "worm house" for my son-in law. They lived by a lake and he loves to fish so this was for bait. It was easy and cheap to do.
Took a huge black garden pot, the type that large trees come in. Lined it with screen door mesh so that the drainage holes in the bottom were covered but water could still get out. Filled it with a mix of garden dirt, compost, shredded paper, leaves, most anything organic I could find. Found a relatively shady spot in the yard and dug a hole big enough to sink the pot almost to the rim. Watered it a bit until it was just moist and then added a few different type containers of bait worms into it. Got a large round outside trash can cover and put on the top so the worms couldn't escape. Then I "fed" it oatmeal and left over veggie trimmings every few days.
The worms not only lived, they thrived and multiplied. He had a constant source of bait all summer long within walking distance of his back door. You know, I should do the same thing for my chickens!