Mulching with leaves
Since it's that time of year when we can get boatloads of leaves, I wanted to comment on this.
Last fall I mulched some of my beds with leaves, some not. I noticed this spring that the beds that had been mulched with leaves had a lot activity from robins. So I'm assuming those beds must have had more worms. So if you want more worms, mulching with leaves is a good way to achieve that.