We are going to use our old dog kennel area for a big run for the birds. The runs are probably about 16'X32' maybe a little bigger. They are 2 runs connected and butted up against the side of a barn. What will be the best cost effective way to cover the run to keep the birds in. On our turkey run we used plastic netting I think it was called deer fencing it was just strands of black plastic in a grid pattern, it has worked pretty good as far as keeping birds in, but last winter it collapsed and pulled apart because of snow building up on it. Is there something better? What did you use??