Hi there....so I have a rabbit hutch style coop that I keep near my shed. I house chicks and pullets in there and then move them to bigger coops. The floor is screened, so I dont have to worry about cleanup so much. The droppings fall through to the ground. What can I do about the fly problem? I dont wanna use poisons on the ground due to free ranging chickens, and I have a couple of thsose fly traps with the liquid in them, but they dont even really work. What can I do that is safe nd will take care of the fly problem.!!!!!!