We got our randallburkey catalog today...while thuming through it came across the Nite guard....it's solor powerd and the way i tihnk it set's up is that you put it on each end post of your run and coop....it's designed to flash little beems of red light to resemble predators (on comming critters will think there's another animal in the area and leave) just wondering if any one has seen or use this...if not what do you use for predator control?