Something got two of my chickens yesterday when I wasn't home. A white hen was--sorry about this part-- beheaded, and my little Silver Seabright Bantam was just taken. I'm pretty upset about my little Banty. So, my daughter and I have been reading up on how deter hawks and owls, and she read that shiny things scare them off. We have hung several aluminum pie plates (disposable) around the property and one on the chicken run itself. Short of keeping them locked up all of the time, what else can we do to scare the owls and hawks? Anything?