So we built our new coop and made sure nothing could dig in or out but the run wasn't covered so we took screen (like for a screen door) and covered the top. The sides are still open. It's too high for the chicks to fly out but will a hawk still try to fly in? There is about a 4ft gap from where the fence ends to the top is. On 2 side only, the back and front are covered completely. Eventually we will finish the sides but haven't had the time or rescources yet.