My chickens free-range whenever I am home, and I enjoy watching them putter around the backyard. But the poop, by gosh! In the grass, fine, no troubles, but there is a lot of poop that winds up on our back patio. I've been sweeping it off every night and then sluicing it with water, but there are still, um, chicken SIGNS on the pavement and a small cloud of flies in the vicinity. I'm trying to figure out how to clean the patio after their rambles, or how to figure out a way to keep them off the patio entirely. Ideas?