I am having to build 2 aviarys for my new exotics and another for peafowl. 1) I am wondering what last longest? I have purchased tennis netting and it is still good after 5 years outside. 2' knotted. 2) I am also thinking I could buy tall chicken wire and piece it together (it is available locally). Mainly it is to keep my birds in and hawks, etc. out. (although the crows chase them off and I have geese and ducks and no problem from them). I of course have fenced on sides and I hotwire bottom and halfway up..... any recommendations where to buy and types? If chickenwire would last longer I would take the bother....