I don't have any chickens, yet, but I am trying to get everything in order for when I do get them. I have a fenced in back yard, about 1/4 acre I was planning on putting them in that is fenced with chain link and goat wire. Am I going to have to build a pen for them or will this be ok for them to run in during the day? I plan on putting them up at night in a coop but I was scared that maybe it was too much yard and too easy to get into? It's about a 4-6 foot fence. Also, in regards to hawks, I had this idea but not sure if it would work... about halfway of the yard I thought about flying a fairly large American flag. Maybe patriotic and practical? I thought it might deter the hawks a bit, I guess only when the wind is blowing, though! Thanks so much!