We are building a run for our 9 chicks. The run will be 8 feet wide and 24 feet long. We plan on using hardware cloth for the bottom 3 feet (1/2 inch) and welded wire for the top portion. My questions are does this seem secure enough to keep out predators ( they will be sleeping in a coop at night) and what size welded wire? Any suggestions and advice would be greatly appreciated.