But, don't you feel the worms are doing good work where they are? I encounter them from time to time and have left them where they are since I have no need to disturb them, really, and felt that improving the soil in general was the best way to encourage more worms.
To be honest, I am a bit puzzled that there are so few worms here! I may have to import some. I have never had to do that before. It's truly bizarre.