Our family is new to raising chickens but we are having a great time so far. We have two buff Plymouth Rocks, two barred Plymouth Rocks and a Rhode Island Red. We are about to move them from inside our house to their new home in our refurbished back yard play house in Berkeley CA. In preparing the chicken house and building their run, we noticed that the fences needed some work and well, one thing led to another and we removed much of the plant material. We now have lovely beds with freshly turned soil that are about to recieve a load of imported worms. We need some ideas on plant materials that will not entice the chickens. We spoke with a garden designer, who does not own chickens, and she suggested that deer resistant materials might be appropriate for a chicken yard. Does anyone know of books or other resources we can explore?