I'm going to put up a temporary run for my chickens next week. I don't have any netting to put over top. I was wondering if anyone had tried using string.....maybe kite string or something thicker to weave a net? The run will only be about 3 or 4' x 8'. I usually let mine free range but there were some mighty fat hawks around here last year around the time I lost over 1/2 of my flock. For those who bought netting for the top, how much did it cost and where did you buy it from?