I have all of my LF chickens, ducks, and peas in a fenced-in "free range" area. It measures 40X150ft. I have 6 chickens, 7 ducks, and 2 peafowl in there. More chickens to come in a few months- bantams. As of now, the grass and weeds are hip high in places. So do they have too much room or am I feeding them too much? DH is going to put up a fence in the middle so the birds will have a 40X70 area. Can we cut the grass in there or will it hurt the birds to have the grass clippings laying in there? I've heard that grass clipping can cause impacted crop. What are your opinions, please? Thanks!