I just read this blog post from a fellow columbus-ite with a backyard flock:
How to worm a chicken in five simple steps. She seems like a pro!
I, on the other hand, am more than a little freaked out by this -- though, not nearly as freaked out as I am about one of the chickens eventually become "egg bound." Barbara Kilarski explains in Keeping Chickens!: Sometimes an egg gets stuck in the chicken's body. If this happens, the backyard farmer must help her relax & sometimes she'll be able to pass the egg. But, if that doesn't work we'll have to "massage some vegetable oil very carefully around her vent while gently massaging the hen's stomach." For the uninitiated, the vent is code for "lady parts." Other books recommend KY. What have we gotten ourselves into!?