I’ve been working on composting using another method besides trench composting for about two months now. I’ve enjoyed it so far, and been honestly trying to compost anything that is possible to compost. One thing I noticed though, as a moved from my brief time using a bucket (there were some holes), to a pile, is that I didn’t see worms anymore. So I come to you composting experts to ask how can I bring more worms to my shady compost pile on clay soil.
I agree with @drk that moisture and time will play a large role in how many worms you’ll find in the pile. Another factor will be the temperature of the pile or in areas of the pile, since worms will leave (if possible) as temps climb above 77F/25C and can perish at 95F/35C. In our own compost piles we’ve found higher proportions of worms after the main thermophilic processes have run their course.
What’s your pile made up of, how large is it, and how long has it been in place?