I am researching chickens. I am in college and unfortunately still live in town. I do have a rather large backyard that wraps around three sides of the house and is fenced in with a privacy fence. I am looking to raise three chickens (start small to see if it works for me). I am interested in if I can build a coop and just turn them loose in the back yard? With that much area, will their scratching tear up the grass, or will they move around enough to allow the grass to recover? Will they stay in that area or try and fly away? Do any of you have experience free ranging chickens in your back yard with a coop for them to spend the night in? Thanks, Crash.