Can I use aviary netting on the top of the run? The run is going to be around 50' x 50' and it is soooo costly to use hardware cloth. The fence will be 6 foot tall welded wire (2x4), with hardware cloth on the bottom 2 ft, and 1 foot underground (or ON the ground). Since I plan to lock them up at night, in a secure coop, can I use aviary netting on the top? The main purpose is to keep the chicken hawks from swooping down during the day. Thanks, Kathy