My family and i are going to raise 15 to 20 meat birds in a chicken tractor. I am planning on moving it once or twice a day if necessary. I am wondering in warm weather how long until you can return to the areas the chickens worked over? My yard is not that big and I want to put my tractor in the best place. I understand there are variables. I live in NC and my grass grows fast. Anyone ones experiences or help finding a useful post would be appreciated.