Hey! I have a nice backyard to let some new chickens go free-range but I don't want the grass that takes up most of the backyard to die! Is there anyway to have them be able to eat some etc without the grass dying? Or is it their poo that kills the grass? Any spray I can use to keep them away? My parents dont want to fence the grass off so...? Is that the only thing I can do? And sorry, not sure where I should put this...thanks!