Yeah, chickens and grass don't mix. You keep emphasizing that you would never get rid of the chickens, but nobody is suggesting you should. The solution to a destroyed yard isn't to get rid of the chickens. It's to keep them out of the yard. Or at least out of the areas where you want grass. It doesn't matter if you fence it off temporarily to regrow the grass. The moment you let them back in, they'll destroy it again. So unless you want to do this back and forth indefinitely, you'll just have to find them some other place to live - like a designated run that's just for them, where they can destroy all they want, and leave the area around the house to you. I love my chickens too and wouldn't get rid of them either, but I don't let them into my yard. They have their own yard, fenced off, where they dig trenches and what not. And I have my grass. Everybody's happy.