My chickens have 100 foot run and it is just about all dirt now. Was lush grass just a few weeks before the chickens got it. How do I get the grass to grow back or is it a done deal? I pretty much figured grass seed was just food unintended. I cut fresh greens and grasses out of the field for them daily since they don't get to free range much due to neighbor's new dog. (yum...chicken) Is it once it's gone that's it. I'd perfer them to have grass. But if that's the case should I use sand or something or just leave the dirt for scratching? Any ideas?? thanks.