When we (my husband, teenage daughter and I) decided to get chickens we did a lot of research. We wanted to keep our girls safe. Be built a strong coop and run. Patio stones sideways in the ground to provide digging, hardware cloth for strength and a roof over both coop and run. It has kept our girls nice and safe. When we let them out for some free range time we always watched over them. Who could have know that a bobcat would jump over our 6 ft. fence, grab a chicken and be gone in seconds. Leaving behind a very upset teenager who had just lost her favorite chicken. The bobcat will be back for more. We will now be expanding so our girls will have a bigger run because they can no longer run free in our backyard...so sad.