So I'm thinking of getting 2-3 hens in the spring and eventually building a coup or a chicken tractor with a small run and putting it under my deck. But I have a few questions and concerns before I begin this adventure. 1.) If I let chickens roam my fenced in backyard, supervised a few times a week are they going to destroy my lawn? I would like to keep my grass in tact but am wondering if they will immediately go for uprooting it. 2.) Can I keep their coop or chicken tractor under my deck? There wouldn't be much sun light except during certain parts of the morning and evening but my deck isn't large and they'd be in the outer corner of it.