I'm trying to plan ahead to see if I really can live with 2 hens. I want them to be free roaming chickens in my 50' by 70' back yard. If I have to keep them confined in a coup or section off a tiny area of my yard, I don't think I want hens at all then. I'll end up neglecting them and just forgetting about them. Same goes for a tractor coup style. However, I love my st augustine grass. I get my grass nice and thick and full for the summer. St augustine has thick grass blade and grows on runners. I'm debating between Ameraucana, cochin, brahma, and silkie hens. Would letting those two just free roam my entire yard completely destroy all of my st augustine? Or do they just eat the tips? I live in central texas where the summer time it gets 100+ for most of it. So I need to keep the grass fairly thick in order to retain water moisture in the ground. I assume getting bantams would help my grass out because they won't eat as much as regular chickens? I was thinking, could I feed em alot of chicken feed in the morning, and they would get full off that and not pick on the grass so much?