We are building a chicken coop which will include a good sized grassed area for our 2 laying hens and 2 meat king pets. None of them, to date, have had any access to grass really. We have mowed and racked the area but by the time they get in it the grass will probably be a good 6 to 7 inches long. Can they just go to town on this grass or do I have to limit/monitor their time on it at first...(like you would with a horse?). Thanks, in advance, for any input on this as I am relatively new to chickens.