We are using hardware cloth on our run and on the top, along with an apron of wire which will be covered with cinderblocks. When we were buying the cinderblocks, the sales guy said, "Why don't you just block the view on the bottom two feet or so, then they can't see each other?" (And we'd have to buy MANY more cinderblocks.)
Yes, I know the predators (raccoons and foxes in my area) can SMELL the chickens, even if they can't see them.
Does anyone use this approach on their runs? Do you think it cuts down on predation?

Yes, I know the predators (raccoons and foxes in my area) can SMELL the chickens, even if they can't see them.
Does anyone use this approach on their runs? Do you think it cuts down on predation?