We are looking into doing something benefit backyard poultry keepers, especially those using organic approaches. I have an idea that could result in feces that is easier to "harvest" from flat surfaces like below roost. Anyone here use the feces for gardening / composting? A particular fiber source I think makes for better feces, but do not know what is the range of amounts that provides benefits with causing troubles. Most interest here is in meat birds (Cornish cross) but I could likely swing some effort towards "free-range" laying hens. I also have access to biochar, but do not know if it can be classified as organic.