A free-range flock is at higher risk of predation than confined birds. Providing natural and artificial cover in the form of bushes, boxes, branches will provide a degree of security and safe-haven when predators are detected.
Eliminate the odor if you have a dog, cat, or even a potty training toddler. You just need 2 parts water to 1 part mouthwash. Spray area completely and lay newspaper on top. The newspaper will absorb the smell completely,