What happens to goat droppings?
It becomes fertilizer— which you want! Droppings provide nutrient rich organic matter that improves soil fertility, texture, water holding capacity and infiltration. Additionally, weed seeds typically cannot survive the digestive system of goats, so those goat droppings aren’t serving as fertilizer for more weeds!
Out go the weeds and invasives, in stay the desirable plants, up comes more native plants next season!