What a dream you provided your chickens right when they thought they weren’t going to get a bunch of worms. Free food and it is high quality food at that! Making little pockets of fertility takes work at first but now it might be self sustaining.
I use deep hay or straw as part of the Ruth Stout method of mulching. He uses them to keep his hoop runs and compost making machine the right temperature. I would think any compost and hay will attract rats as it is a nice bedding for them but the same goes for any chicken coop litter.
And he gets out there and interacts with the chickens. It’s not all about how many eggs they can give you. My yard is an absolute food forest with incredible abundance and it’s all from the little ladies working hard turning the dirt and depositing nuggets of gold.
I have chickens living in our sustainable permaculture food forest and I would like to grow them free chicken feed. A usual hen eats 1/4 pound of feed per day if required to stay in a coop and run all day. Without the food forest and lake supplementing their feed, they would be expected to eat...