I don't worm routinely. I have a policy that I only worm an animal if I have a positive fecal sample that indicates the need. (In the case of a flock, just a sample from the flock in general, gathered from several locations, as a representative. I feel it's too hard on the system to do it unless there's a real need.

In the nest box where she sleeps she normally has small droppings.
Food is a great motivator.