I was out in my chicken run today, which is very large for my eight birds. It is loaded with plants and a deep compost of pine needles, oak leaves and straw. It's been raining a lot and I went out to do some raking to turn things over for them. I came upon TONS of little gray worms, like baby earthworms, next to the one side of their coop (outside). It is a location that sits between the coop and a big bush they love to get under and eat berries/flower buds off of, so it's a little protected. Do you have any thoughts on if these things would be some other kind of harmful worm? My chickens don't eat worms and I didn't like the look of so many, so I put diatomaceous earth on them plus some fresh leaf litter mixed with Timothy Hay (from under the rabbit hutch). I'm wondering if this is some kind of funky worm farm that has sprung up or something harmful. Thank you for any thoughts.