Hawks have not bothered my geese. I had a hawk kill a muscovy duck once but it could not take it. Geese are generally too big for many predators to mess with although it can happen. It's always best to provide some place for them to get out of the sun if they wish, so that should technically work as hawk cover.I won't be able to cover that area, though. Do you think the Coopers hawks will be a major threat? I can give them a shelterand other things to run under for cover.