I have 5 chickens that I LOVE...they r in their coop all day..but just b4 dusk i like to let them out to run free...i would love to let them out more but they wreck my backyard. They kick the mulch all over the patio and dig by the bushes all the way down to the roots. Is there anyway I can keep them closer around their coop and on the grass area and away from the patio and mulch beds around the pool. Is there something i can put on the lawn like a fake owl or something to keep them from passing over to the patio area???