I have a coop with an attached run. It worked fine when we could free range our chickens, but there is a hawk in our neighborhood that likes the taste of chicken, and has attacked at least four flocks, including ours. I would like to make a larger run/yard for them to be in during the day. I think we have cheap fish netting available here but could a predator(aerial or not) tear through? I need to cover the top as well for the obvious reasons. Do you have any suggestions?